Your review: I have yet to install this particular light but we have three others in our shop that all perform well in a somewhat hostile environment inside of milling machines' enclosures. So they are continuously bombarded with chips and water soluble coolant and until recently had not had a failure. We have two lights with borosilicate tubes and one light with the polycarbonate tube. We recently broke one of the borosilicate tubes which is why we bought this replacement (and because these lights are being discontinued.) However, I found a source for a replacement borosilicate tube and repaired the existing light, leaving this as a spare.
The light was delivered when promised and the price was the lowest I could find for this type of product.