Quote:
Originally Posted by Ross
I have been preaching this for nearly a year: you get what you pay for. Good light meters (calibrateable) are the only ones worth spending money on. The only definitive way to describe how much light is being provided is to measure it. Glad you made that discovery and glad that discovery led to better success. Exactly as I would have predicted  I also trust you have found great success with t5 florescents. By the way, it is possible to "fry" your orchids under these lights if the foot-candles or lumens are not controlled - whoah! We're back to the light meter 
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Agree! It IS really easy to fry orchids under T5's. I will attest to that- along with a few of my sunburnt plants too. Even with using a light meter. I have found that even readings over 1500 footcandles may be too bright for a full day under the lights and have had good success in backing that down some. So I'd add that just because one has a good tool in a high quality light meter, doesn't mean one can't still screw up using it!

One can definitely produce alot of good light with T5's - using it without frying some of our poor trusting orchids takes observation, good tools and experience.
