---
product_id: 92106888
title: "Onforu 4 Pack 42W LED Black Lights, Blacklight Bars with Plug and Switch, Glow in The Dark Party Supplies for Halloween Decorations, Bedroom, Body Paint, Stage Lighting, Poster, Black"
brand: "onforu"
price: "£66.22"
currency: GBP
in_stock: true
reviews_count: 8
category: "Onforu"
url: https://www.desertcart.co.uk/products/92106888-onforu-4-pack-42w-led-black-lights-blacklight-bars-plug
store_origin: GB
region: United Kingdom
---

# 385-400nm pure blacklight wavelength 42W power per bar 180° adjustable bracket Onforu 4 Pack 42W LED Black Lights, Blacklight Bars with Plug and Switch, Glow in The Dark Party Supplies for Halloween Decorations, Bedroom, Body Paint, Stage Lighting, Poster, Black

**Brand:** onforu
**Price:** £66.22
**Availability:** ✅ In Stock

## Summary

> ✨ Light Up Your Night, Own the Glow! 🌟

## Quick Answers

- **What is this?** Onforu 4 Pack 42W LED Black Lights, Blacklight Bars with Plug and Switch, Glow in The Dark Party Supplies for Halloween Decorations, Bedroom, Body Paint, Stage Lighting, Poster, Black by onforu
- **How much does it cost?** £66.22 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/92106888-onforu-4-pack-42w-led-black-lights-blacklight-bars-plug)

## Best For

- onforu enthusiasts

## Why This Product

- Trusted onforu brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Play Convenience:** Comes with a 5ft cord and easy on/off switch—no wiring needed, just position with the adjustable bracket and light up instantly.
- • **Built to Last & Stay Cool:** Durable aluminum housing with fin-type heat sink design for efficient cooling and a 50,000-hour lifespan—party worry-free all night long.
- • **Pure Neon Glow Guaranteed:** Specialized 385-400nm wavelength with high-transmittance PC lens ensures vibrant fluorescence on reactive pigments and body paint.
- • **Versatile Glow for Every Occasion:** Ideal for Halloween, stage lighting, bedroom ambiance, posters, and any neon-themed celebration—join the glow-up movement now.
- • **Illuminate Large Spaces Effortlessly:** Each 42W LED bar covers up to 355 sq ft with a wide 120° beam angle—perfect for immersive glow parties and events.

## Overview

The Onforu 4 Pack 42W LED Black Lights deliver powerful, energy-efficient UV illumination with 36 high-quality LEDs per bar, covering up to 355 sq ft. Featuring a pure 385-400nm wavelength and a 180° adjustable bracket, these plug-and-play blacklight bars are designed for long-lasting performance with a durable aluminum build and advanced cooling system. Perfect for parties, decorations, body paint, and stage lighting, they bring vibrant neon colors to life with ease and style.

## Description

Onforu 4 Pack 42W LED Black Lights, Blacklight Bars with Plug and Switch, Glow in The Dark Party Supplies for Halloween Decorations, Bedroom, Body Paint, Stage Lighting, Poster, Black - desertcart.com

Review: LED Is The Way To Go! - These lights have proven themselves worthy. I’ve had them for a while now and I leave them on for hours sometimes days at a time and not a single one has burned out on me. I was skeptical of their size upon opening the box but sometimes big things come in small packages. They light up anything neon super bright. The lights themselves don’t look super bright but they make my art pop unlike some old fluorescent tubes I was using before. LED is the way to go for black lights for sure. They do get warm but I have handled them while on and they didn’t burn me or anything. Not saying to go grab one when it’s been on for a couple hours. The housing and mounts seem durable but not the strongest material either, which is probably why the don’t weigh too much. Never tried to submerge one or spray water on them when on to see how water resistant they are. Don’t recommend doing that either… I just know from experience that electricity, water, and myself don’t exactly mix too well.🤪 The lighting exceeded my expectations and I have a couple more for backup when one burns out. Overall good buy!
Review: Great fun for our birthday party - These worked really well for our blacklight dance party. We had a fairly large room and these units were enough to fluoresce the whole space. The lights have a warning attached that they get hot, and they do get quite warm, so be careful where you set them. I've only used them for the one party, but it was several hours and they all worked great. They seem sturdy and were easy to set up.

## Features

- 4 Pack Powerful Black Lights: Each 42W halloween black light bars with 36 units high quality LEDs can light up a 355 square ft area. It provides 120 degree wide beam angles, 50,000 hours long life and high power efficiency;
- Fluorescent Reactive: Wavelength: 385-400 nm, Safe-A level, safe to use. Use PC lens with high light transmittance, it produces more pure black lights than other PC lens. Ideal to work with most reactive pigments, dyes, and paints. Especially with neon-colored objects(Our products are not suitable for people under 15 years of age);
- Easy To Install and Use: Comes with 5.0ft/1.5m long cord and switch, this black glow light can be conveniently switched on or off. Standard US power cord with plug, no need to wire, just plug and play. Easy to position with 180°adjustable bracket. Works with AC input from 100V-120V;
- Long-Lasting Metal Design & Efficient Cooling: The special fin-type heat sink design on the back of the blacklight, and the high quality aluminum housing, which provide more efficient heat dissipation and prolong the lifespan of the floodlight. There is no need to worry about the over-heat, ensure safe use;
- Wide Application : Onforu Halloween black light bars has powerful brightness, is great for halloween decorations, glow party, body painting, fluorescent posters, birthday parties, weddings, events, etc;

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07H8D43TK |
| Batteries are Included | No |
| Best Sellers Rank | #15,875 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #12 in Black Light Fixtures |
| Brand Name | Onforu |
| Bulb Shape Size | B11 |
| Color | Black |
| Color Rendering Index | 80 |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,398) |
| Finish Types | Unfinished |
| Global Trade Identification Number | 00753318000452 |
| Included Components | LED Light |
| Item Type Name | black light bar |
| Light Source Special Features | Fluorescent reactive wavelength 385-400 nm, 50,000 hours lifespan, high power efficiency, switch control, 180° adjustable bracket, efficient cooling system |
| Light Source Type | Light Emitting Diode |
| Light Source Wattage | 27 Watts |
| Manufacturer | Onforu |
| Manufacturer Warranty Description | 2 year. |
| Material Type | Aluminum, Plastic |
| Maximum Compatible Light Source Wattage | 27 Watts |
| Model Number | CTC42UV |
| Mounting Type | Table Mount |
| Number of Light Sources | 36 |
| Power Source | Corded Electric |
| Shade Material | glass,pc |
| Shape | Square |
| Specification Met | FCC, IP 66 |
| Style Name | Art Deco |
| UPC | 753318000452 |
| Unit Count | 4.0 Count |
| Voltage | 120 Volts |

## Product Details

- **Color:** Black
- **Finish Type:** Unfinished
- **Light Source Type:** Light Emitting Diode
- **Material:** Aluminum, Plastic
- **Shape:** Square

## Images

![Onforu 4 Pack 42W LED Black Lights, Blacklight Bars with Plug and Switch, Glow in The Dark Party Supplies for Halloween Decorations, Bedroom, Body Paint, Stage Lighting, Poster, Black - Image 1](https://m.media-amazon.com/images/I/71GcsQnTFIL.jpg)

## Available Options

This product comes in different **Number Of Items** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ LED Is The Way To Go!
*by E***O on March 15, 2026*

These lights have proven themselves worthy. I’ve had them for a while now and I leave them on for hours sometimes days at a time and not a single one has burned out on me. I was skeptical of their size upon opening the box but sometimes big things come in small packages. They light up anything neon super bright. The lights themselves don’t look super bright but they make my art pop unlike some old fluorescent tubes I was using before. LED is the way to go for black lights for sure. They do get warm but I have handled them while on and they didn’t burn me or anything. Not saying to go grab one when it’s been on for a couple hours. The housing and mounts seem durable but not the strongest material either, which is probably why the don’t weigh too much. Never tried to submerge one or spray water on them when on to see how water resistant they are. Don’t recommend doing that either… I just know from experience that electricity, water, and myself don’t exactly mix too well.🤪 The lighting exceeded my expectations and I have a couple more for backup when one burns out. Overall good buy!

### ⭐⭐⭐⭐⭐ Great fun for our birthday party
*by C***T on January 8, 2026*

These worked really well for our blacklight dance party. We had a fairly large room and these units were enough to fluoresce the whole space. The lights have a warning attached that they get hot, and they do get quite warm, so be careful where you set them. I've only used them for the one party, but it was several hours and they all worked great. They seem sturdy and were easy to set up.

### ⭐⭐⭐⭐⭐ Definitely changes the rooms mood
*by G***7 on March 9, 2026*

These lights are awesome and turned the whole room into a fest.

## Frequently Bought Together

- Onforu 4 Pack 42W LED Black Lights, Blacklight Bars with Plug and Switch, Glow in The Dark Party Supplies for Halloween Decorations, Bedroom, Body Paint, Stage Lighting, Poster, Black
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**Shop now:** [https://www.desertcart.co.uk/products/92106888-onforu-4-pack-42w-led-black-lights-blacklight-bars-plug](https://www.desertcart.co.uk/products/92106888-onforu-4-pack-42w-led-black-lights-blacklight-bars-plug)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-24*