[Big Clive] picked up some chip-on-board (COB) LEDs meant for hydroponics that were very unusual and set out to examine them on video. Despite damaging the board almost right away, he managed to do ...

Khatod has introduced silicone lenses for CoB arrays, called SIO3. The material has been chosen for its: sustained transparency over years, resistance to yellowing, UV-resistance, optical efficiency, ...

Yet again, I was asleep when an innovative optic first appeared. This one is a TIR collimator inside a collimator, intended to get fairly narrow beams from CoBs. Sized for fitting in PAR20s and called ...