Best picks

9 Best LED Shop Lights for Pole Barn (November 2026)

Updated on · By the The Wise Bulb team

The best LED shop lights for pole barns include the Barrina T8 8FT LED Shop Lights 10-Pack (best overall for pole barns), the CINOTON 160W UFO LED High Bay Light for high barn ceilings, and the hunhun 10 Pack ETL 155W UFO LED for lighting a whole barn.

On this page (9 sections)
  1. The best LED shop lights for pole barns by need
  2. How these pole barn lights compare
  3. How we compared these pole barn lights
  4. How high is your barn ceiling?
  5. How much light does a pole barn need?
  6. Do you need dimming or simple on/off?
  7. How should you mount lights in a pole barn?
  8. What about damp air, dust and lifespan?
  9. Verdict: which pole barn light should you buy?

The best LED shop light for a pole barn for most owners is the Barrina T8 8FT 10-Pack, because ten linkable 72W strips at 10,000 lumens each cover a wide floor in even daylight. Pick the CINOTON 160W UFO if your barn ceiling runs past 14 ft and you want fewer, stronger fixtures.

A pole barn is a big, open, often unheated space. The right lighting choice comes down to three things: how high the ceiling is, how much floor you need lit and whether the air stays damp or dusty.

A fourth matters more than most owners expect: how many fixtures you are willing to hang and wire.

This guide compares strip lights and UFO high bays by those needs. Every fixture below is scored on its output, mounting and fit for barn use.

Our score weighs specs, features and buyer feedback against what you're shopping for.

Our picks at a glance

  1. 1 Barrina T8 8FT LED Shop Lights 10-Pack
    Best overall for pole barns

    Barrina T8 8FT LED Shop Lights 10-Pack

    9.2/10 our score

    See it on Amazon
  2. 2 CINOTON 160W UFO LED High Bay Light
    Best for high barn ceilings

    CINOTON 160W UFO LED High Bay Light

    9.0/10 our score

    See it on Amazon
  3. 3 hunhun 10 Pack ETL 155W UFO LED
    Best for lighting a whole barn

    hunhun 10 Pack ETL 155W UFO LED

    8.7/10 our score

    See it on Amazon
  1. 4JC-LGL UFO LED High Bay Light 200W

    JC-LGL UFO LED High Bay Light 200W

    Best for adjustable brightness
    Check it
  2. 5ELEKICO Commercial-grade 37500LM 250W High Bay LedCheck it
  3. 6GGTH 200W UFO High Bay LED Shop

    GGTH 200W UFO High Bay LED Shop

    Best for damp, dusty barns
    Check it
  4. 7ELEKICO 8FT 100W LED Shop Lights 6-PackCheck it
  5. 8ELEKICO 8FT 100W V-Shape LED Shop Lights 12-PackCheck it
  6. 9ONLYLUX 8FT 100W 6000K LED Shop Lights 10-PackCheck it

The best LED shop lights for pole barns by need

The top pick covers most pole barns, while each other light wins a specific job: very high ceilings, damp air, adjustable brightness or a long open bay. Match the light to your barn before you compare small extras.

The main split is shape. Long 8 ft strips lay light across a wide floor from open trusses, while round UFO high bays push a cone of light down from a peak.

1

Barrina T8 8FT LED Shop Lights 10-Pack: Best overall for pole barns

Barrina T8 8FT LED Shop Lights 10-Pack, LED shop lights for pole barns
9.2/10Our score
  • 10 fixtures at 72W and 10,000 lumens each
  • 5000K daylight white
  • Link up to 4 lights per run
  • Hardwire or plug with included cords
  • 3-year warranty

Ten long strips cover a wide barn floor in even daylight and link together to cut wiring runs. The 94-inch bodies fit cleanly between open trusses.

See it on Amazon

Pros

  • Ten fixtures in one order
  • Links up to 4 per run
  • Hardwire or plug-in setup

Cons

  • 5000K runs cool for a cozy feel
  • Needs clearance to mount flat

Barrina's ten-pack suits a barn with open trusses at a moderate height. Each 8 ft strip puts out 10,000 lumens at 72W and a 5000K daylight color, so ten fixtures light a broad floor evenly without dark gaps between runs.

The strips link up to four per run using the included connectors or cords. That means fewer home runs back to the panel, and cleaner wiring across the ceiling.

Each body is 94 inches long and weighs 2.2 pounds, so measure the span between trusses before you plan the rows and keep the mounting point solid.

You can hardwire the fixtures or use the five power cords with on/off switches that come in the box. Ten hardwiring kits and eight connecting cables are included too.

A 3-year warranty backs the set. The 5000K color reads neutral and clear rather than warm, which suits work areas more than a cozy feel.

Skip it if your barn ceiling sits well above 14 ft and you want light concentrated straight down. That is where the high bays below do more per fixture.

Barrina T8 8FT LED Shop Lights 10-PackCheck it on Amazon
2

CINOTON 160W UFO LED High Bay Light: Best for high barn ceilings

CINOTON 160W UFO LED High Bay Light, LED shop lights for pole barns
9.0/10Our score
  • 24,000 lumens at 5000K
  • ETL listed
  • Dia-cast aluminum housing
  • US plug and safety chain
  • 5-year service

A single 160W UFO throws 24,000 lumens down from a high peak, so one fixture lights a big bay without a row of strips.

See it on Amazon

Pros

  • Huge output from one fixture
  • ETL listed with safety chain
  • Plug and play

Cons

  • Single fixture only
  • Needs a strong mounting point

CINOTON's 160W UFO is the light to reach for when your barn has a tall peak. One fixture pushes 24,000 lumens at 5000K, which CINOTON says rivals a 700W halogen or sodium lamp.

That is a lot of light from a single head.

It arrives with a US plug, a hook and a safety chain, so you can hang it and plug it in without an electrician for the basic setup. The dia-cast aluminum housing helps it shed heat and keeps light decay below 5 percent, according to the brand.

CINOTON lists a 5-year service period and an ETL listing. Optional PC reflectors are sold separately if you want to narrow the spread in a low-clearance bay.

A single bright cone is its strength and its limit. It lights a central bay well but leaves the corners to other fixtures.

For a barn where you want one strong light over a work zone, that trade is easy to accept.

Skip it if you need wide, even coverage across a long floor. The strips and multi-packs here cover more ground per order.

CINOTON 160W UFO LED High Bay LightCheck it on Amazon
3

hunhun 10 Pack ETL 155W UFO LED: Best for lighting a whole barn

hunhun 10 Pack ETL 155W UFO LED, LED shop lights for pole barns
8.7/10Our score
  • Ten UFOs at 155W and 22,500 lumens each
  • ETL listed
  • IP65 waterproof
  • Built-in hook and 5 ft cord
  • 5-year warranty

A ten-pack of high bays covers a large barn in one buy. The IP65 housing handles damp and dusty air around animals and equipment.

See it on Amazon

Pros

  • Ten fixtures in one order
  • IP65 for damp barns
  • Built-in hook for easy hanging

Cons

  • A lot of fixtures to mount
  • Higher total draw than strips

The hunhun ten-pack is the choice for lighting an entire barn in one buy. Ten 155W UFOs at 22,500 lumens each give you enough heads to spread light down the length of the building.

Its IP65 rating matters in a pole barn, where damp air and dust are common around animals and equipment. The enclosed housing is built to keep working in wet and dusty conditions.

Each light hangs from a built-in hook with a 5 ft cord and a safety cable for backup. The 392 diodes per head and a flicker-free driver keep the light steady over long work sessions.

At 155W per fixture, ten lights draw more total power than a strip setup. That is the cost of the higher per-fixture output.

If your barn is large and you want bright light in every bay, the count here is a real advantage.

Skip it for a small barn, where ten fixtures is more light than you need. The single CINOTON UFO or a short strip run covers a smaller space.

hunhun 10 Pack ETL 155W UFO LEDCheck it on Amazon
4

JC-LGL UFO LED High Bay Light 200W: Best for adjustable brightness

JC-LGL UFO LED High Bay Light 200W, LED shop lights for pole barns
8.6/10Our score
  • 30,000 lumens at 5000K
  • 0-10V dimmable
  • Three wattage settings
  • ETL listed
  • 5-year warranty

Dimmable output and three wattage steps let you dial the light down for evening chores. The 200W fixture is bright for a big central bay.

See it on Amazon

Pros

  • Dimmable with a 0-10V switch
  • Three wattage settings
  • IP65 rated

Cons

  • Dimmer switch sold separately
  • Six fixtures in the pack

JC-LGL's 200W UFO adds control. It is dimmable at 0-10V and has three wattage settings, so you can run it at full 30,000-lumen output for daytime work and dial it down to 150W or 120W for evening chores or a quieter corner.

The dimmer switch itself is sold separately, so budget for one if dimming is the reason you are choosing this light. The IP65 housing handles damp air, and the heavy die-cast aluminum body aids heat shedding.

JC-LGL lists a 5-year warranty and a 50,000-hour rating.

The pack holds six fixtures, which sits between the single CINOTON and the ten-pack hunhun. That middle count suits a medium barn that needs a few strong lights rather than a full row of strips.

The included hook and 5 ft cord keep the install simple.

Skip it if you want simple on/off lighting and do not need the dimming or wattage steps. The hunhun ten-pack gives you more heads for a wide barn.

JC-LGL UFO LED High Bay Light 200WCheck it on Amazon
5

ELEKICO Commercial-grade 37500LM 250W High Bay Led: Best for very large barns

ELEKICO Commercial-grade 37500LM 250W High Bay Led, LED shop lights for pole barns
8.3/10Our score
  • 35,000 lumens at 5000K
  • 120-degree beam angle
  • Die-cast aluminum housing
  • Plug, hook and safety rope
  • 5-year warranty

The 250W unit is the brightest single fixture here, suited to a large open barn where fewer, stronger lights make sense.

See it on Amazon

Pros

  • Highest single-fixture output
  • Wide 120-degree beam
  • 5-year warranty

Cons

  • Fewest fixtures in its pack
  • Needs a solid overhead anchor

ELEKICO's 250W UFO is the brightest single fixture in this group. At 35,000 lumens and a 120-degree beam angle, one light covers a wide circle below it.

That makes it a fit for a very large open barn with a high peak.

The wide beam helps it reach more floor than a narrow spot would. An upgraded optical lens keeps the output even across that spread.

It hangs from a hook with a 5 ft cable and a safety rope. ELEKICO backs it with a 5-year warranty and runs it on AC100-277V.

The trade is count. This pack holds fewer fixtures than the ten-packs here, so covering a long barn takes more than one order.

If your building is one big open volume and you want strong overhead light, the output per fixture makes that trade worthwhile.

Skip it for a modest barn where a ten-pack of strips or UFOs gives you more coverage for the same floor. The beam is wide, but the pack is small.

ELEKICO Commercial-grade 37500LM 250W High Bay LedCheck it on Amazon
6

GGTH 200W UFO High Bay LED Shop: Best for damp, dusty barns

GGTH 200W UFO High Bay LED Shop, LED shop lights for pole barns
8.2/10Our score
  • Six UFOs at 200W and 29,000 lumens each
  • IP66 waterproof and dustproof
  • 5000K with 90+ CRI
  • ETL listed
  • 5-year service

The IP66 rating and 90+ CRI make these six high bays a fit for animal barns and workshops where color and moisture matter.

See it on Amazon

Pros

  • IP66 for wet and dusty air
  • 90+ CRI shows true colors
  • Six fixtures in the pack

Cons

  • 200W per fixture draws more power
  • Bulkier heads than the strips

GGTH's six 200W UFOs are built for tough conditions. The IP66 rating is the highest here for water and dust protection, and a 90+ CRI shows colors closer to true, which helps in a barn used for animals or detailed work.

The housing is rated to run from -40°F to 131°F.

Each fixture delivers 29,000 lumens at 5000K with a 120-degree beam. The set includes a 5 ft UL-listed cord, a US plug and a safety cable.

GGTH lists ETL certification and a 5-year service period. The hollow die-cast aluminum body is designed to move heat away from the LEDs.

The 200W draw per fixture is higher than the strips, so a long evening of use costs more in power. For a damp, dusty barn where you want light that keeps working and colors that read right, that is a fair exchange.

Skip it if low running cost is your top concern. The 72W Barrina strips light a similar floor area for far less power.

GGTH 200W UFO High Bay LED ShopCheck it on Amazon
7

ELEKICO 8FT 100W LED Shop Lights 6-Pack: Best for long open bays

ELEKICO 8FT 100W LED Shop Lights 6-Pack, LED shop lights for pole barns
8.1/10Our score
  • Six 8 ft strips at 15,000 lumens each
  • V-shape 270-degree lighting
  • Links up to 3 per run
  • Plug in with on/off switch
  • 50,000-hour lifespan

Long 8 ft strips with a V-shape lens throw light to the sides as well as down, so aisles between stalls stay bright.

See it on Amazon

Pros

  • V-shape spreads light sideways
  • Fewer fixtures cover long runs
  • Plug-in cords with switches

Cons

  • Not for ceilings 20 ft or higher
  • Links only 3 per run

ELEKICO's six-pack of 8 ft strips suits a long, open bay. The V-shape lens throws light to the sides as well as down, so aisles between stalls or equipment rows stay bright.

Each strip gives 15,000 lumens at 100W, with 768 diodes per fixture and a 150 lumen-per-watt rating.

The set plugs in with cords that have on/off switches and links up to three strips per run. It works on AC100-277V.

ELEKICO lists a 50,000-hour lifespan and includes snap joints for a quick hang.

ELEKICO notes these are not for ceilings 20 ft or higher, and warns to keep them away from radios and remote-controlled doors, since they can cause interference. If your barn peak sits that high, choose a UFO high bay instead.

For a lower open truss, the sideways spread is the reason to pick these over straight-down strips.

Skip it for a very tall barn. The high bays here concentrate light down where you need it at that height.

ELEKICO 8FT 100W LED Shop Lights 6-PackCheck it on Amazon
8

ELEKICO 8FT 100W V-Shape LED Shop Lights 12-Pack: Best for big strip coverage

ELEKICO 8FT 100W V-Shape LED Shop Lights 12-Pack, LED shop lights for pole barns
7.9/10Our score
  • Twelve 8 ft strips at 15,000 lumens each
  • 270-degree V-shape beam
  • Links up to 3 per run
  • Plug or hardwire
  • 50,000-hour lifespan

Twelve V-shape strips in one box cover a large floor in wide bands. That count makes it a strong fit for a long, open barn layout.

See it on Amazon

Pros

  • Twelve fixtures in one order
  • V-shape for wide spread
  • Power cords with switches

Cons

  • Links only 3 per run
  • Many fixtures to install

This ELEKICO set takes the V-shape strip idea and doubles the count. Twelve 8 ft strips at 15,000 lumens each cover a large floor in wide bands, which suits a long barn with several parallel aisles.

The 270-degree beam spreads light sideways and down, and the 4-row chip layout keeps the light even along the full 96-inch body. You can link three strips per run, and each set includes cords with switches plus hardwire options.

The strips run at 100W and ELEKICO lists a 50,000-hour lifespan and an 80 CRI.

The trade is install time. Twelve long fixtures take more mounting than a few UFOs, so plan a full day and a helper if your trusses are high.

The payoff is even light across a wide footprint.

Skip it for a compact barn or a single work zone. A shorter pack or one strong UFO does the job with less effort.

ELEKICO 8FT 100W V-Shape LED Shop Lights 12-PackCheck it on Amazon
9

ONLYLUX 8FT 100W 6000K LED Shop Lights 10-Pack: Best for cool white light

ONLYLUX 8FT 100W 6000K LED Shop Lights 10-Pack, LED shop lights for pole barns
7.6/10Our score
  • Ten 8 ft strips at 15,000 lumens each
  • 6000K cool white
  • Links up to 3 per run
  • Hang or surface mount
  • 5-year warranty

The 6000K color runs cooler and whiter than the 5000K picks, which some owners prefer in a workshop corner or tool bay.

See it on Amazon

Pros

  • Ten fixtures in one order
  • Hang or surface mount
  • IP54 rated

Cons

  • 6000K reads cold to some eyes
  • Links only 3 per run

ONLYLUX's ten-pack runs at 6000K, cooler and whiter than the 5000K picks here. If you want a crisp, bright-white look over a tool bay or workshop corner, this set gives you ten 8 ft strips at 15,000 lumens each.

The V-shape four-row chip design and aluminum housing keep the output steady across the body.

The strips hang from chains or mount directly to ceilings and beams, so you can fit them to open trusses or a flat ceiling. The box includes hanging wires, power cords and connecting wires for the full set.

They link up to three per run. ONLYLUX lists an IP54 rating and a 5-year warranty.

The 6000K color is the main trade. It reads cold to some eyes and can feel clinical in a barn you also use for gatherings.

The IP54 rating is also lower than the IP65 and IP66 high bays here, so it is the weakest pick for a barn that stays damp.

Skip it for a damp barn or a space where warm-looking light matters. Choose the GGTH set for moisture protection or a 5000K strip set for a more neutral tone.

ONLYLUX 8FT 100W 6000K LED Shop Lights 10-PackCheck it on Amazon

How these pole barn lights compare

The comparison table lines up output, wattage, mounting and pack count so you can see which light gives the most usable brightness for your barn's height and size. Read the lumens-per-fixture column against your floor area first, then check the mounting and rating columns against your trusses and air quality.

ProductBest forBrightnessWattageLengthOur score
Barrina T8 8FT LED Shop Lights 10-Packoverall for pole barns10,000 lm each72W each94 in9.2
CINOTON 160W UFO LED High Bay Lighthigh barn ceilings24,000 lm160W9.0
hunhun 10 Pack ETL 155W UFO LEDlighting a whole barn22,500 lm each155W each8.7
JC-LGL UFO LED High Bay Light 200Wadjustable brightness30,000 lm200W8.6
ELEKICO Commercial-grade 37500LM 250W High Bay Ledvery large barns35,000 lm250W8.3
GGTH 200W UFO High Bay LED Shopdamp, dusty barns29,000 lm each200W each8.2
ELEKICO 8FT 100W LED Shop Lights 6-Packlong open bays15,000 lm each100W each94 in8.1
ELEKICO 8FT 100W V-Shape LED Shop Lights 12-Packbig strip coverage15,000 lm each100W each96 in7.9
ONLYLUX 8FT 100W 6000K LED Shop Lights 10-Packcool white light15,000 lm each100W each7.6

How we compared these pole barn lights

We started with the height of a typical pole barn ceiling and the way light spreads from each fixture type. Then we checked the specs that decide whether a light fits: lumens per fixture, wattage, beam angle, mounting hardware, linking limits and damp-air ratings.

We also noted whether each light plugs in or hardwires, since that changes the install.

We weighed how many fixtures come in each pack, since a ten-pack and a single head solve very different barns. A ten-pack spreads light across a long building; a single head serves one bay.

We also looked at color temperature and CRI, because a barn used for animals or detail work asks more of color than a storage bay does. Finally, we set each score against what a pole barn owner needs most: enough light for the floor, simple mounting and a fit for unheated or damp air.

We compared published specs and the buyer patterns that come with each design.

How high is your barn ceiling?

Ceiling height is the first decision, because it changes whether you want light spread wide or pushed straight down. Measure from the floor to the highest truss or ridge you can mount to.

That number, more than floor size, tells you whether strips or UFOs belong in your barn.

Strip lights for ceilings under about 14 ft

Long 8 ft strips suit open trusses at this height. They spread light across the floor in wide bands and cover aisles well.

The Barrina ten-pack and the ELEKICO V-shape sets fit this range. A strip hung flat or on a short chain sits close to the truss and throws light down and out without a long cone.

If your ceiling is closer to 14 ft, our guide to LED shop lights for a 14 foot ceiling covers the height check in more detail.

UFO high bays for taller peaks

Once the mounting point sits around 14 ft or higher, a high bay's downward cone puts more light on the floor per fixture. The CINOTON 160W and the GGTH 200W sets are built for this.

A single strong UFO can light one central bay without a row of strips. The ELEKICO 250W takes this furthest with 35,000 lumens from one head.

If you go this route, use the safety chain or cable on every fixture and hang from a structural member, not a thin purlin.

How much light does a pole barn need?

Plan for about 20 to 30 lumens per square foot for general work, and more where you do detailed tasks. Multiply your barn's floor area by that figure to get a total lumen target.

For example, a 40 x 30 ft barn is 1,200 square feet. At 25 lumens per square foot, you need about 30,000 total lumens.

That is three 10,000-lumen strips or two 15,000-lumen strips, or a couple of UFO high bays. A 2,400 square foot barn doubles that target, which is where the ten-pack and twelve-pack sets earn their keep.

The hunhun ten-pack and the ONLYLUX ten-pack each give you plenty of fixtures to reach that total. If you only need one bright zone, one CINOTON UFO at 24,000 lumens may cover it.

Count lumens per fixture, not just total in the box, so you know how the light lands on the floor.

Do you need dimming or simple on/off?

Dimming is worth it if you use the barn in the evening or want to cut light for animals. Otherwise, a simple plug-and-switch setup is easier and cheaper.

Most pole barns run fine on plain on/off control, so treat dimming as a bonus rather than a requirement.

Lights with dimming controls

The JC-LGL 200W UFO is dimmable at 0-10V and has three wattage steps. It gives you control over output, but the dimmer switch is sold separately.

If dimming matters to you, read our guide on whether LED shop lights are dimmable before you buy. Keep in mind that the strip lights here are not listed as dimmable, so dimming is a reason to choose a high bay.

Lights with simple plugs and switches

Most strips and UFOs here run from a standard US plug with an on/off cord. The Barrina set, the hunhun ten-pack and the GGTH set all plug in without extra controls.

That suits a barn where you just want light on when you walk in. If your barn already has switched outlets, a plug-in light needs no new wiring at all.

How should you mount lights in a pole barn?

Mounting depends on your trusses and how much clearance you have. Hang UFOs from a hook and chain, and fit strips flat to beams or hang them on chains.

Every UFO here includes a hook and a safety chain or cable. Use the safety hardware, especially in a barn with high peaks.

Strips like the Barrina set mount close to the ceiling or hang from snap joints. The ONLYLUX set gives you hanging wire and a surface-mount option in one box.

If your ceiling is high, a chain lets you drop the light to a better working height. For a long open bay, running strips along the trusses keeps wiring tidy and light even.

Check the linking limit before you plan a run: Barrina allows four, while the ELEKICO and ONLYLUX strips allow three. Our look at 4 foot LED shop lights covers shorter fixtures for smaller bays and basements.

What about damp air, dust and lifespan?

Choose a light rated for wet and dusty conditions if your barn houses animals or sees seasonal moisture. An IP65 or IP66 rating tells you the housing is sealed against water and dust.

The first digit covers dust and the second covers water, so IP66 is the toughest here.

The GGTH set carries IP66, the highest here, and the CINOTON, hunhun and JC-LGL high bays carry IP65. The ONLYLUX strips carry IP54.

A higher rating matters more in a barn that stays damp or dusty all year.

Longevity follows heat and build quality. The aluminum housings on the high bays help them shed heat.

Most fixtures here list 50,000-hour lifespans or 5-year warranties. Our guide on how long LED shop lights last explains what shortens that life in a real barn.

Heat is the main enemy, so a sealed housing and a solid heat sink matter more than a long hour rating on paper.

Verdict: which pole barn light should you buy?

For most pole barn owners, the Barrina T8 8FT 10-Pack is the best LED shop light for pole barn coverage, with ten linkable 10,000-lumen strips that light a wide floor evenly. Pick the CINOTON 160W UFO if your ceiling is high and you want one strong light.

Choose the GGTH 200W set for a damp, dusty barn that needs IP66 protection. Pick the JC-LGL 200W UFO when you want dimming and wattage control.

And for a long open bay at a lower height, the ELEKICO V-shape sets spread light sideways down the aisles.

Our top 3 picks at a glance

  1. 1 Barrina T8 8FT LED Shop Lights 10-Pack
    Best overall for pole barns

    Barrina T8 8FT LED Shop Lights 10-Pack

    9.2/10 our score

    See it on Amazon
  2. 2 CINOTON 160W UFO LED High Bay Light
    Best for high barn ceilings

    CINOTON 160W UFO LED High Bay Light

    9.0/10 our score

    See it on Amazon
  3. 3 hunhun 10 Pack ETL 155W UFO LED
    Best for lighting a whole barn

    hunhun 10 Pack ETL 155W UFO LED

    8.7/10 our score

    See it on Amazon

Frequently asked questions

Are UFO high bay lights or strip lights better for a pole barn?

UFO high bays suit ceilings around 14 ft and up, because they push light straight down in a cone. Long 8 ft strips suit lower open trusses where you want wide, even light across the floor.

What color temperature works in a pole barn?

5000K daylight white is the usual pick for workshops and barn aisles because it reads neutral and clear. 6000K runs cooler and brighter white, which some owners like over tool benches but others find harsh.

Can LED shop lights handle cold and damp barns?

Yes, if the fixture is rated for it. Look for an IP65 or IP66 rating for damp and dusty air, and check that the mounting and wiring suit an unheated building before you buy.

Do pole barn lights need a special plug or wiring?

Many high bay and strip lights come with a standard US plug and a cord, so you can run them from an outlet. Others hardwire to a circuit.

Match the light to the wiring already in your barn, or plan for an electrician.