Leviton30 Incandescent Lampholder, Medium Base, Two Piece Porcelain; 660W-600V; Keyless; with Two 8-32 By 1/2 Inch Long Mounting Screws.

I use these to replace the heat lamp ballasts. I use heat lamps in my business and these are the only ones I've found that are direct replacements. I have to use the old screws for ballast to lamp frame but the screws that hold the ballast together work perfectly. Save a lot of money replacing lamps.

this was precisely the lampholder i was searching for to replace on a fixture i use to light up bait. after a couple months of use outdoor in a marine environment, it has held up wonderfully and continues to resist corrosion despite being subjected to a harsh, salty environment. i recommend this product

perfect as described

Exactly what I was looking for. I bought some antique laps and needed to replace the old porcelain light bulb receptacles.

Perfect replacement for those old barn lamps

these lampholders was a perfect replacement for the ome. I would recommend buying these. these lampholders were used in commercial food service.

Used to repair a kitchen heat lamp.

They were great. Thanks