Här är en sida med olika varianter, men jag kan inte tillräckligt om våglängder, lumen, växtkrav osv för att avgöra om det här är material att nå ner sådär 50 cm i en tank.
http://www.marinedepot.com/lighting_moonlight_moon_lunar_lamp__subindex-ap.html
Och på
http://americanaquariumproducts.com/LEDLights.html säger man:
[COLOR=#000080][SIZE=2]*The latest technology LED Light Systems we sell require as little as 4% of the wattage for the same useful energy output as a traditional T8/T12 light. When the outdated watts per gallon rule for planted/reef aquariums (@ 4 watts per gallon) is applied to a TMC GroBeam (as an example), this can come out to
requiring only .16 watts per gallon[/SIZE][/COLOR][SIZE=2][COLOR=#000080] for the high PAR TMC LED Lights (see [/COLOR][/SIZE]
[SIZE=2][COLOR=#0000ff]Aquarium Lighting; Important Parameters[/COLOR][/SIZE][SIZE=2][COLOR=#000080])
Even raw data from tests conducted with plant growth indicate these high output TMC LED lights require 14-28% of the wattage of popular HO T5 lights and Metal Halide lights (although this was a test for plants where a 12 Watt LED surpassed a 175 Watt MH in growth, the process of photosynthesis of plants and PAR requirements there of are the same whether terrestrial, freshwater or the symbiotic zooanthellic algae found in corals).
*
Less expensive than T5 Lights when compared to the equivalent light energy of (2) T5 18 Watt Lights & fixtures including; electrical usage, initial cost, T5 annual lamp replacement over the 5 year life of a AquaRay LED light fixture; the AquaRay costs $178.28 vs. $318.85 for the T5
*It should also be noted with that these new technology LED emitters can be selected for the exact wavelength of light, thus almost no useless yellow or green light is emitted, so although the LED may seem less bright than some HO lights with the naked eye (such as T5s or MH) the actual output of light energy in spectrums we cannot see is much higher.
See this article for further explanation: [/COLOR][/SIZE]
[SIZE=2][COLOR=#0000ff]Aquarium Lighting Facts & Information[/COLOR][/SIZE]"