LED Panel

[Ron99]

Those types of LEDs put out virtually no PAR. Okay if you are going fish only but useless for any coral etc.

You need at minimum 1 watt high power LEDs for low light corals and 3 watt high power LEDs for SPS or clams etc. Also, depending on the depth of the tank, you may need optics on them.

These panels are cheap but of no use on reef tanks. Decent LEDs that produce sufficient PAR for photosynthetic organisms are not cheap and neither are the constant current drivers needed to power them. It's getting better and more affordable options will be coming but avoid anything that is inexpensive as it just won't work.