Delta optical thin film Delta optical thin film focuses on complex optical filter technology for more than 50 years and it is one of the first companies to produce ultra-hard-coated optical filters. Today, the design and manufacture of high-performance fluorescence...
The review from Aarno Koponen of Finland: The bulbs I bought work. The bulbs I bought work just as described. It's quite heavy at 206 grams and pulls my table lamp down, but that's a design problem with my table lamp It...
The review from J.Turek of Czech Republic Prague: Wonderful high CRI led strip The led strips are very nice! I made my whole house with these led strips. I have updated a couple of older lights and they are now more...
