Of all the lighting options available to aquarists, LED aquarium lighting is becoming one of the more popular choices for both marine, reef and freshwater hobbyists. Aquarium LED lighting was initially used only as moon lights for reef aquariums, but LED aquarium lights have since grown into much more. Now you can find aquarium LED lights for reef tanks that put out as much PAR as a metal halide system, but without the additional heat and high electric bill.
In addition to the aquarium LED light fixtures and pendants that are suitable for reef tanks, there are also other options, such as supplemental LED light strips (to use in combination with metal halide or T5 lighting), LED refugium light fixtures and LED moonlight fixtures.
From pendants and full fixtures to PAR38 LED aquarium lamps, aquarium LED lighting options are almost limitless, with some hobbyists even making their own DIY LED lighting systems.