Cheap LEDs do this. They lack a warm spectrum. They also give a lot of noise on your electricity net. But there are expensive LEDs emitting warm light. Perfect

Cheap LEDs do this. They lack a warm spectrum. They also give a lot of noise on your electricity net. But there are expensive LEDs emitting warm light. Perfect for reading. They emit a much wider spectrum of light. I think in the aquarium world there are a lot of innovations when it comes to the light spectrum of LEDs. Especially in salt water aquariums.