42 X White & 3 X Blue 60mW LED
This model has rubber feet and is designed to sit on a glass tank top. It lights my 10 gallon (20" long) tank perfectly. I don't recommend it for any tank larger than that. There is no lense over the LED's; they are recessed but could be touched with a finger. On one hand, there is no lense to trap moisture or get scratched. On the other hand, the LED's look easy to damage.