The Selux, M 100 replacement lens is very well-made.
Unfortunately, in my case, I have a fixture that was made in 2003 with old ladder style half round lenses. In receiving this replacement lens, I had to cut it down from 48 inches to 44 3/4 inches, in order to fit my fixture. Once cut down, putting it into place was a loose fit, but once it heated up due to the lamps, it fit more snug. My only concern is when the lights are off and the lens and fixture cool down whether the lens will drop out Due to vibration pressure differences within the buildings would allow the lens to drop out. I have over 150 fixtures and unfortunately don’t have enough time to cut each lens to fit.
