GloFishLED Light 10 Gallons, Blue And White LED Lights, For Aquariums Up To 10 Gallons (29029)

Are these submersible? Do these promote plant growth at all? Thanks ahead of time.

Does this get brighter than the glofish cycle light?

How do you clip this on a tank with a hang on back filter? Do you clip it to the front of the tank?

Can these lights attach to the underside of the cover?