Review on Affordable Generic Replacement Panasonic FDS18E35 Fluorescent: Optimal Lighting Solution by Evan Larson

These bulbs are a bit trickier as there are several options that look the same but have a bulge in the socket that interferes with proper installation. I have a few cheap fakes with no bulges to fit anywhere (including spots with the wrong starter which can cause problems. They are perfect for the Panasonic FDS18E35/4. I have used some as replacements in a ceiling fan/bathroom combo Lichtraum, and they haven't failed in a couple of years, so I call it a success.