---
product_id: 58743777
title: "Beam Lighting Under Cabinet Light Cover Replacement | White Ribbed Acrylic Diffuser (L-Shaped, 12\")"
brand: "beam lighting plastics your diffuser source"
price: "£18.89"
currency: GBP
in_stock: true
reviews_count: 8
category: "Beam Lighting Plastics Your Diffuser Source"
url: https://www.desertcart.co.uk/products/58743777-beam-lighting-under-cabinet-light-cover-replacement-white-ribbed-acrylic
store_origin: GB
region: United Kingdom
---

# Optimized for fluorescent & LED 12-inch L-shaped diffuser Easy screw-in installation Beam Lighting Under Cabinet Light Cover Replacement | White Ribbed Acrylic Diffuser (L-Shaped, 12")

**Brand:** beam lighting plastics your diffuser source
**Price:** £18.89
**Availability:** ✅ In Stock

## Summary

> 💡 Illuminate your space with precision and style—because your lighting deserves an upgrade!

## Quick Answers

- **What is this?** Beam Lighting Under Cabinet Light Cover Replacement | White Ribbed Acrylic Diffuser (L-Shaped, 12") by beam lighting plastics your diffuser source
- **How much does it cost?** £18.89 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/58743777-beam-lighting-under-cabinet-light-cover-replacement-white-ribbed-acrylic)

## Best For

- beam lighting plastics your diffuser source enthusiasts

## Why This Product

- Trusted beam lighting plastics your diffuser source brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Tool-Free Upgrade:** Simple screw-in installation means no electrician needed—upgrade your space in minutes.
- • **Versatile Placement:** Perfect for kitchens, bathrooms, and workspaces—where style meets function.
- • **Durable Acrylic Build:** Crafted from high-quality polyacrylate for long-lasting, scratch-resistant performance.
- • **Seamless Retrofit Ready:** Fits legacy fluorescent fixtures with precision, saving you time and hassle.
- • **Enhanced Light Diffusion:** White ribbed design softens glare while maximizing brightness for a professional ambiance.

## Overview

The Beam Lighting Under Cabinet Light Cover Replacement is a 12-inch L-shaped white ribbed acrylic diffuser designed for easy retrofit of fluorescent and LED under-cabinet fixtures. Made from durable polyacrylate, it offers enhanced light diffusion and a perfect fit for legacy lighting setups, enabling quick, tool-free installation to elevate your home or office lighting experience.

## Description

Beam Lighting Under Cabinet Light Cover Replacement | White Ribbed Acrylic Diffuser (L-Shaped, 12") - desertcart.com

Review: Quality item and replacement, better than the original - Good quality, accurate dimensions and great fit.
Review: Great option for retrofitting! - This came very close to perfectly fitting a legacy 18 inch fluorescent under cabinet light. The ballast went out, no replacement could be ordered. I acquired a 24 inch LED light strip, stripped off the ends, peeled the adhesive back and applied 18” against the light’s metal frame, trimmed off the last 6” and wired it into the Romex home wiring ends. As I mentioned it was a close but not a perfect fit. To avoid a ton of purchases and returns of other similar light diffusers, I applied double sided adhesive tape (3x 1/4 inch pieces against the light’s outer metal frame; and to attach the inner diffuser edge against the frame. The diffuser now easily removes, reinstalls and it stays in place! QUALITY: solid FUNCTION: easy to install, even close fits can work out with minor imagination! The diffuser allowed the light through without dimming it too much FIT: VERY close to original PRICE: Reasonable

## Features

- 100% brand new and high quality
- Made of acrylic, durable and practical to use
- Perfect for lighting your kitchen, living room, bedroom, bathroom and other places
- Easy to install, just need to screw the lamp holder into the original socket

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0748LCLCH |
| Assembly Required | No |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #16,636 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #152 in Under-Counter Light Fixtures |
| Brand | BEAM Lighting Plastics Your Diffuser Source |
| Color | White |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,770) |
| Date First Available | July 26, 2017 |
| Finish Type | Linear Ribbed |
| Finish types | Linear Ribbed |
| Included Components | Under-Cabinet Lighting Cover |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.44 ounces |
| Item model number | WS-320 |
| Light Direction | Fluorescent |
| Manufacturer | BEAM Lighting Plastics Your Diffuser Source |
| Material | Polyacrylate |
| Mounting Type | Under Cabinet |
| Number of Items | 1 |
| Number of Lights | 1 |
| Number of Pieces | 1 |
| Part Number | 320 |
| Pattern | Solid |
| Plug Format | A- US style |
| Power Source | DC |
| Product Dimensions | 12"W x 12"H |
| Shade Color | white |
| Shade Material | Acrylic |
| Shape | Corner |
| Size | 12 Inch |
| Specific Uses | Cabinet |
| Style | L-Shaped |
| Switch Style | Push Button |
| Type of Bulb | Fluorescent |
| UPC | 685642995916 |
| Voltage | 120 Volts |

## Product Details

- **Brand:** BEAM Lighting Plastics Your Diffuser Source
- **Color:** White
- **Finish Type:** Linear Ribbed
- **Included Components:** Under-Cabinet Lighting Cover
- **Material:** Polyacrylate
- **Mounting Type:** Under Cabinet
- **Pattern:** Solid
- **Product Dimensions:** 12"W x 12"H
- **Shape:** Corner
- **Style:** L-Shaped

## Images

![Beam Lighting Under Cabinet Light Cover Replacement | White Ribbed Acrylic Diffuser (L-Shaped, 12") - Image 1](https://m.media-amazon.com/images/I/615keupV9RL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality item and replacement, better than the original
*by M***K on January 31, 2026*

Good quality, accurate dimensions and great fit.

### ⭐⭐⭐⭐⭐ Great option for retrofitting!
*by H***S on October 1, 2025*

This came very close to perfectly fitting a legacy 18 inch fluorescent under cabinet light. The ballast went out, no replacement could be ordered. I acquired a 24 inch LED light strip, stripped off the ends, peeled the adhesive back and applied 18” against the light’s metal frame, trimmed off the last 6” and wired it into the Romex home wiring ends. As I mentioned it was a close but not a perfect fit. To avoid a ton of purchases and returns of other similar light diffusers, I applied double sided adhesive tape (3x 1/4 inch pieces against the light’s outer metal frame; and to attach the inner diffuser edge against the frame. The diffuser now easily removes, reinstalls and it stays in place! QUALITY: solid FUNCTION: easy to install, even close fits can work out with minor imagination! The diffuser allowed the light through without dimming it too much FIT: VERY close to original PRICE: Reasonable

### ⭐⭐⭐⭐⭐ Fits perfectly!!
*by F***H on January 20, 2026*

I've been looking for under the cabinet fluorescent light covers for years. Nowhere has them and everyone that I can find is either too short doesn't fit or made of crappy material. These came delivered in a short time in perfect condition the plastic looks great they look like they would have originally out of the box in 1960 with these ballasts. I could not be happier with the outcome and I will be buying these again if ever anything were to happen to them.

## Frequently Bought Together

- Beam Lighting Under Cabinet Light Cover Replacement | White Ribbed Acrylic Diffuser (L-Shaped, 12")
- F8T5 Flourescent Light Bulbs - 12 inches Under Cabinet Bulb - Cool White 4100k 8 Watt Tube Bulb - Pack of 6

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**Shop now:** [https://www.desertcart.co.uk/products/58743777-beam-lighting-under-cabinet-light-cover-replacement-white-ribbed-acrylic](https://www.desertcart.co.uk/products/58743777-beam-lighting-under-cabinet-light-cover-replacement-white-ribbed-acrylic)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-14*