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Do I Need To Drill Or Cut Hole In Wall To Install M3 LED RV Utility Lights?  

Published 09/11/2025

Question:

Do I need to cut a big hole in the wall to install these? I don’t see any cutout dimensions on the product page.

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Expert Reply:

Good catch, Hannah. Unlike recessed lights, the # M388FR gray and # M378FR black mount right on the surface (flush mount). The only “hole” you’ll need is a small one for the two-wire lead. That’s why you won’t see cutout specs listed. If you’re replacing an existing wired light, you’ll already have that access hole. Are you swapping an old fixture or adding new light where there wasn’t one before?

Other folks - how tricky was your wiring through the hole when you installed?

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Andrew N

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