💡 Illuminate your space with clarity and style—don’t let dull lighting hold you back!
The Beam Lighting 42-3/8” L-Shape Under Cabinet Light Cover Replacement is a high-quality, American-made white ribbed acrylic diffuser designed to fit 42-inch fluorescent under cabinet fixtures. Its UV-stabilized, non-yellowing material ensures long-lasting clarity, while the ribbed design maximizes light diffusion for a modern, glare-free finish. Easy snap-in installation makes it a perfect upgrade for professionals seeking both function and style.
| Brand | BEAM Lighting Plastics Your Diffuser Source |
| Color | White |
| Material | Polyacrylate |
| Shape | Corner |
| Product Dimensions | 42.38"W x 1"H |
| Finish Type | Linear Ribbed |
| Style | Modern |
| Mounting Type | Under Cabinet |
| Pattern | Solid |
| Number of Items | 1 |
| Number of Pieces | 1 |
| Base Width | 1 Inches |
| Assembly Required | Yes |
| Manufacturer | BEAM Lighting Plastics Your Diffuser Source |
| Part Number | UCL4-4238 |
| Item Weight | 5.6 ounces |
| Item model number | UCL4-4238 |
| Is Discontinued By Manufacturer | No |
| Finish | Linear Ribbed |
| Power Source | DC |
| Installation Method | Snap in |
| Item Package Quantity | 1 |
| Type of Bulb | Fluorescent |
| Plug Format | A- US style |
| Usage | Cabinet |
| Batteries Included? | No |
| Batteries Required? | No |
B**E
Perfect Replacement
I worried I would be unable to find a replacement cover for a 40 year old fixture. This was a perfect fit, identical to the original. First one sent arrived with a crack; it was promptly replaced with no hassle
W**R
Great product AND customer service
The first cover I ordered arrived in a box obviously damaged in transit. I returned it and ordered a replacement. When it didn’t arrive, I contacted the seller and received a reply the next day to inform me that a replacement wouldn’t be authorized by Amazon until the original had been received and processed. It was during the busy holiday rush, and the seller graciously agreed to promptly send out another cover. The product is made of a rigid, quality plastic and fits my under cabinet light perfectly. I am very pleased with this product and the efficient and courteous customer service. I highly recommend this company!
J**A
Fits my 18 year old 42" undercounter light perfectly
The old cover was warped by a toaster. Upgraded to LED bulbs and it is better than new.
J**5
Perfect replacement part
Quick delivery and perfect replacement part for a cracked diffuser we needed for our under mount cabinet lights. Well packaged and looks great!
F**G
Almost fit perfectly.
The lens was about 2mm to long and required minor trimming. Since I have several of the same fixtures tried it in all just to make sure it was not the fixture. It looks good installed.The company that I bought it from was very responsive and easy to work with as the first order arrived damaged. It was well package so the blame goes to the USPS.
E**O
It fits perfectly
The piece is sturdy ( we previously had builders grade and it was flimsy ).
T**N
Perfect replacement
This part was a perfect replacement for the original part. Easy installation, problem solved.
R**Z
Length is 1/4" longer than specified; did not fit and broke when tried to install it
The spec says 42-3/8” long, but it what I received were 42-1/2" long, a quarter inch too long to fit in our fixture, and broke immediately when I tried to push it into place. What a disappointment.
Trustpilot
2 weeks ago
2 months ago
