Ray and Fishmommy, what is coverage of Jungle Dawn LED? It's probably partly depends on the reflector design, but does a single bulb provide more than 1'x1' orchid growing area (let's say low-moderate light paphs, or whatever you grow)? It's only 13W, and I'd like to know how effective it is. I'm not so happy with 90W 5-band UFO LED light. The fan is noisy. It does provide pretty strong light for the center, but the usable area seems to be at most 1.5' x 1.5' (from 2.5' above the plants).
Has anyone measured PAR of Jungle Dawn LED?
According to this post:
Lighting an Aquarium with PAR instead of Watts
Some LED like Finnex Ray II seems to be able to provide similar PAR as some T5HO, but it's not as good as the best T5HO. But if we calculate the PAR per watt, LED seems to be better.
Hybrid Mode
