For past month I've run this
$40 Hygger 30 Watts Aquarium LED Reef Light over zoas, palys, mushrooms, duncans, trumpet, heliopora, and a pectinia in a 11" tall 7g desk top tank with light 6" above the water.
All have thriving and most have almost doubled in size.
Only Con is there is no ramp up or down.
- High Power: 30W high power LED with 60 degree lens, higher brightness, strong penetrating power, can penetrate deeper water, and can save more power. The ultra-bright Nano LED aquarium light is 3.2" in diameter, the light's diffusion range is 20" x 20", the peak PAR is 60 µMol at a depth of 24". Recommended for 18'' x 18'' aquariums , suitable for small aquariums such as saltwater fish, live rock, low-light soft corals and reef aquariums
① 5-level brightness adjustment: 100% --77% --55% --32% --10%, easily dimmed appropriately for different marine pets (coral reefs or fish) lighting to promote the growth of any SPS and LPS that under it.
② 3 light colors: blue, warm white, white.
③ 3 timing options: the internal timer allows you to choose the light running for 6H, 9H or 12H.
④ Switch: press the key to turn on or off the light, the operation is very convenient
Amazon link not working....