The king of led reef lights

Quickly becoming the new king of reef and planted aquarium lighting with many high end LED manufacturers such as Twilightgroups, Aqua Illuminations (among others) leading the way.

These LED  aquarium light have the same shimmer effect and "popping" of coral life otherwise found in Metal Halide.

This aquarium light type uses semiconductor technology as its light source.
What is noteworthy is that these are "light emitting diodes" NOT bulbs! What difference does this make?
The answer is a lot, as with any electronic circuit these must have an exact voltage to run correctly.

The difficulty in the past (and where many still misunderstand the complexities of LED) is correct wave length of the emitters, which in part are affected by the drivers/circuitry maintaining correct voltage over all emitters.

The high quality LED  aquarium light do not have the heat problems, often last 50,000 hours, can produce less useless yellow/green spectrum light (in high-end aquarium LED adjusted configurations), and are very compact.
In fact this lack of much of the yellow/green light (as a percentage) often makes a "high-end" LED look less bright to the human eye, when in fact the opposite is true as per useful light energy (PUR).

The new  LED reef lights compatible & freshwater planted tank LED's are likely to take over the market along with the T2, T5, & SHO lights as the top manufacturers of LED fixtures become more readily available as the price comes down, while at the same time PUR (useful light energy, their main advantage) & general aquarium compatibility come up.