Measuring Florescent light output

[Calbears]

Originally Posted by naoki

The unit on the graph is probably correct. Here is my measurement, which matches well with Ray's.

http://www.orchidboard.com/community...tml#post572079

Naoki,

For some reason the link is going to the "Orchids in Frog Vivariums" thread but I did see your post and I'm disappointed my 4x4' t5 ho fixture will have to almost touch my plants during this coming winter.

Thanks

[Ray]

Originally Posted by Calbears

Naoki,

For some reason the link is going to the "Orchids in Frog Vivariums" thread but I did see your post and I'm disappointed my 4x4' t5 ho fixture will have to almost touch my plants during this coming winter.

Thanks

That graph was from a single, 2', 24W bulb. Your 4 x 4' fixture, having 4 x 54W bulbs - 9x the light output.

No, you're not going to have to put the lamp that close the the plants.