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The best black lights for a Halloween yard, rated for outdoors

A UV flood makes webs, skeletons and glow paint jump out of a dark yard. Output, weatherproofing and the number of fixtures decide which one.

By Sawyer V. · Published

Halloween decorations lit outside a house at night

Under a black light, anything fluorescent glows and everything else goes dark. That makes it the most dramatic light in a Halloween yard: glow-painted tombstones and neon tape jump out, and the yard around them disappears.

The old tube black lights were indoor party lights. The LED floods below are built like any other outdoor floodlight, with an IP rating and a sealed body, so they can sit in a flowerbed through October. Five below, one to skip.

Wreath & Watt earns a commission on qualifying purchases made through the Amazon links on this page. It costs you nothing and it does not change the order of the picks — here is exactly how we are funded.

Quick picks

#ProductBest forScorePrice
1No imageFAISHILAN 50 W LED black light floods, 2 pack, IP66, plug and switch2 x 50 W UV floods, IP66, plug-in with switchTwo angles on a yard display8.8/ 10
2No imageRemon 100 W UV LED black lights, 2 pack, IP66, switch and US plug2 x 100 W UV floods, IP66, switch and plugA big yard or a garage-door haunt9.3/ 10
3No imageLIGHTIMETUNNEL 50 W LED black light, IP66, with 5 rolls of UV glow tape50 W UV flood, IP66, 5 rolls of fluorescent tapeA starter kit that includes something to glow7.8/ 10
4No imageOnforu 38 W LED black lights, 2 pack, IP66, with plug2 x 38 W UV floods, IP66, plug-inA porch, a stoop or a window display8.3/ 10
5No imageHouLight 50 W UV LED black light flood, IP65, 85-265 V50 W UV flood, IP65, 385-400 nmSkip thisSkip6.8/ 10

Scores are our own weighting of published manufacturer specifications, explained in full on how we research. They are not test results. We have not tested these products.

The picks in full

No image

#1 — Two angles on a yard display

FAISHILAN 50 W LED black light floods, 2 pack, IP66, plug and switch

2 x 50 W UV floods, IP66, plug-in with switch

The pick. A matched outdoor pair at a wattage that suits a porch-to-lawn display.

Published specifications

Fixtures
2
Power
50 W each, 100 W the pair
Rating
IP66
Connection
Plug-in, with switch
Draw
About 0.83 A the pair at 120 V (our arithmetic)
Wavelength
Not stated in the listing

Our scoring

Output
8 / 10
Weatherproofing
10 / 10
Fixtures
10 / 10
Spec completeness
7 / 10

Good

  • Two fixtures light a display from two sides, so there is no single hard shadow
  • IP66 with a plug and a switch — outdoor-ready out of the box

Watch out

  • Wavelength not stated in the listing title
  • Two cords to route to power

Specs from the Amazon listing (ASIN B07THXK9HN), verified 2026-09-11.

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#2 — A big yard or a garage-door haunt

Remon 100 W UV LED black lights, 2 pack, IP66, switch and US plug

2 x 100 W UV floods, IP66, switch and plug

Best for scale: the pair to throw UV across a whole front yard.

Published specifications

Fixtures
2
Power
100 W each, 200 W the pair
Rating
IP66
Connection
Switch and US plug
Draw
About 1.67 A the pair at 120 V (our arithmetic)
Wavelength
Not stated in the listing

Our scoring

Output
10 / 10
Weatherproofing
10 / 10
Fixtures
10 / 10
Spec completeness
7 / 10

Good

  • The most UV output here — 200 W across two fixtures
  • IP66, with a switch and a plug

Watch out

  • Overkill for a porch; at close range it floods rather than glows
  • Wavelength not stated in the listing title

Specs from the Amazon listing (ASIN B0B2WPLY2V), verified 2026-09-11.

No image

#3 — A starter kit that includes something to glow

LIGHTIMETUNNEL 50 W LED black light, IP66, with 5 rolls of UV glow tape

50 W UV flood, IP66, 5 rolls of fluorescent tape

Best starter: one outdoor flood and the tape to make something glow under it.

Published specifications

Fixtures
1
Power
50 W
Rating
IP66
Rated life
50,000+ hours
Extras
5 rolls of fluorescent neon gaffer tape
Connection
Not stated in the listing

Our scoring

Output
8 / 10
Weatherproofing
10 / 10
Fixtures
5 / 10
Spec completeness
8 / 10

Good

  • Comes with glow tape — outline a door, a path edge or a tombstone the night it arrives
  • Publishes rated life and IP66

Watch out

  • One fixture; a display lit from one side throws hard shadows
  • Plug and switch not named in the listing title

Specs from the Amazon listing (ASIN B07JZ3D235), verified 2026-09-11.

No image

#4 — A porch, a stoop or a window display

Onforu 38 W LED black lights, 2 pack, IP66, with plug

2 x 38 W UV floods, IP66, plug-in

Best for small spaces: two gentler floods for a porch or a stoop.

Published specifications

Fixtures
2
Power
38 W each, 76 W the pair
Rating
IP66
Connection
Plug
Draw
About 0.63 A the pair at 120 V (our arithmetic)
Wavelength
Not stated in the listing

Our scoring

Output
6 / 10
Weatherproofing
10 / 10
Fixtures
10 / 10
Spec completeness
7 / 10

Good

  • Lower wattage suits close range — a porch, a doorway, a window
  • IP66, plug included, two fixtures

Watch out

  • The least output here; it loses the far side of a big yard
  • Switch not named in the listing title

Specs from the Amazon listing (ASIN B07GGV5B7R), verified 2026-09-11.

No image

#5 — skip this

HouLight 50 W UV LED black light flood, IP65, 85-265 V

50 W UV flood, IP65, 385-400 nm

Skip unless the box confirms a plug. The best wavelength spec here, and a missing connection spec.

Published specifications

Fixtures
1
Power
50 W
Rating
IP65
Wavelength
385-400 nm
Rated life
50,000 hours
Input
85-265 V AC
Plug and switch
Not stated in the listing

Our scoring

Output
8 / 10
Weatherproofing
8 / 10
Fixtures
5 / 10
Spec completeness
6 / 10

Good

  • Publishes its wavelength — the only listing here that does
  • Rated for 50,000 hours

Watch out

  • No plug or switch named in the listing title; confirm before buying, or it may need wiring
  • IP65, a step below the IP66 of the rest

Specs from the Amazon listing (ASIN B01LRQ47Q8), verified 2026-09-11.

How we ranked these

Weatherproofing and output first, then the number of fixtures, then how much the listing tells you. Totals and amps are our arithmetic from the published watts.

Published watts, rating and connection
LightFixturesWatts eachTotalIP ratingConnection
FAISHILAN250 W100 WIP66Plug and switch
Remon2100 W200 WIP66Plug and switch
LIGHTIMETUNNEL150 W50 WIP66Not stated
Onforu238 W76 WIP66Plug
HouLight150 W50 WIP65Not stated

Total is watts each times fixtures, our arithmetic. HouLight is the only listing that publishes a wavelength (385-400 nm).

Source: Manufacturer listings on Amazon.com, verified September 2026.

Two fixtures beat one big one

A single flood lights a display from one side and throws a hard shadow behind everything. Two floods from two angles, even at lower wattage each, fill those shadows in, and the display looks lit rather than spotlit. That is why the FAISHILAN pair ranks first: two IP66 floods, each with a plug and a switch, at a wattage that suits a porch-to-lawn display. The Remon pair doubles the output for a big yard or a garage-door haunt.

The arithmetic

  1. Remon pair: 2 x 100 W = 200 W; 200 W / 120 V = 1.67 A
  2. FAISHILAN pair: 2 x 50 W = 100 W = 0.83 A
  3. Onforu pair: 2 x 38 W = 76 W = 0.63 A
  4. 15 A circuit at the 80% continuous limit: 12 A = 1,440 W

Even the biggest pair here draws under 2 A. Black lights are rarely what overloads a Halloween circuit; the fog machine beside them is the heavy load.

The whole budget, fog machine included, is on Halloween yard display power.

Aim close, not far

The arithmetic

  1. Same flood, same beam angle
  2. Move it from 10 ft to 20 ft from the display
  3. The lit area grows 2 x 2 = 4 times
  4. Same output over 4 times the area = about a quarter of the UV per square foot

Black light fades fast with distance. Put the floods close to what they light, low and angled up, rather than on the far side of the lawn. That is where a lower-wattage pair like the Onforu earns its place, and where a 100 W flood is more than you need.

What glows

Black light only helps things that fluoresce. Neon glow tape and fluorescent paint are made for it, which is why the LIGHTIMETUNNEL kit comes with 5 rolls of tape: outline a doorway, a path edge or a tombstone the first night. White stretch spider webs often glow under UV too, but test a piece before building a display around it. A fog machine catches the light in the air between the flood and the display.

Why HouLight is the skip

The HouLight is the only listing here that publishes a wavelength, 385-400 nm, which is the most useful spec a black light can list. But its title names no plug and no switch, and it is IP65 where the rest are IP66. Confirm the connection on the box before buying, or plan on an electrician.

For the other layers of light in the same yard, see Halloween display lighting.

Questions

Can you use a black light outside?

Yes, if it is built for it. Every light here is an LED flood rated IP65 or IP66, the same kind of rating an outdoor floodlight carries. The old tube black lights are indoor lights.

How many watts of black light do I need for a yard?

A pair of 38 to 50 W floods covers a porch-to-lawn display. A pair of 100 W floods is for a big yard or a garage-door haunt. Two fixtures from two angles beat one big one.

What glows under a black light?

Anything fluorescent: neon glow tape, fluorescent paint, and many white fabrics and webs. Test a piece of any prop before you build a display around it.

How far away should a black light be?

Close. Doubling the distance spreads the same output over four times the area. Put the floods low and near the display, angled up.

Sources

  • FAISHILAN black light listing (ASIN B07THXK9HN)2 pack, 50 W, IP66, plug-in with switch, outdoor
  • Remon black light listing (ASIN B0B2WPLY2V)2 pack, 100 W UV LED, IP66, switch, US plug
  • LIGHTIMETUNNEL black light listing (ASIN B07JZ3D235)50 W, IP66, 50,000+ hours, 5 rolls of fluorescent gaffer tape
  • Onforu black light listing (ASIN B07GGV5B7R)2 pack, 38 W, flood light with plug, IP66
  • HouLight black light listing (ASIN B01LRQ47Q8)50 W, IP65, 85-265 V AC, 385-400 nm, 50,000 hours
  • Amp and distance arithmeticWatts / 120 V; the 80% continuous rule on a 15 A circuit; lit area against distance for a fixed beam — our arithmetic

We have not tested these products. Every figure above comes from a published manufacturer specification or from arithmetic shown on this page, and anything a maker does not publish is printed as unavailable rather than estimated. How that works, and what we will not claim, is set out on how we research.