If the aquarium lighting was bluer, the corals would be healthier and the exhibit would appear more natural-looking.

A local authority in the east of the Isle of Man has agreed to replace all of its street lighting with LEDs over the next five years. At its public meeting this week, Garff Commissioners voted in ...

If you had an array of high power addressable LEDs, how would you project them onto a wall? Perhaps you’d use a Fresnel lens, or maybe an individual lens on the top of each. [Joo] faced this problem ...