Par 38 adjustable led for saltwater tank?

[oneball]

Dimmable High Power Par38 White + Blue LED Aquarium Reef Corals Grow Light Bulb, 1325w+b:Amazonatio, Lawn & Garden

Has anyone tried one of these? I'm looking at upgrading to a 20Lx10wx12h 10 gallon and need more light. Anyone have any experience with this?

 

[carey]

I was using a similar one for my 4g pico but it wasnt dimmable. It worked very well with all my corals and gave the tank a really nice shimmer. I even had 2 of the par38 bulbs on my 20g rimless for a while, got some growth, nothing major. For a smaller tank i think they are ideal.