The Philips Master LEDTube InstantFit lamp solves this problem by offering the first true drop-in LED replacement tube. While this isn’t the first LED substitute for a T8 lamp, it is the first that doesn’t require rewiring the fixture to bypass the old fluorescent tube electronic ballast. That might sound like a small thing, but it means that the lamps can be switched over to LED by a maintenance worker in a couple of minutes, instead of requiring the work of an electrician. When you’ve got hundreds of lamps in a large supermarket or other business, that can mean the difference between changing the lamps in an afternoon, and taking on a project lasting several weeks.
This is huge for my lightboxes.