When LED's first came out they were total crap IMHO. I turned down many sales people pushing them for use in the freezers. Some would have you believe they would never go out... still don't live up to the lifespan ratings. Did a few tests and the lift operators hated them. Just a bright spot of glare and no light to see the product on shelf. Another lie was 'they don't give off heat'. The face was cool, but some of the fixtures I looked at had a massive heat sink on the back. The ballasts would fail and the entire fixture is scrap. They are improved since then, but still not up to the original expectations.