Re: Halide lamps and heat (SMTP Id#: 2935) - Reply

Barry Meyers-Rice (
Mon, 31 Jan 94 11:48:43 MST

My question about lamps, fluorescent, incandescent, and halides, is
the following...

If you buy a 100W lamp of any type, doesn't that mean that you are expected
to get 100W of radiant energy out of the thing? And so if you have a 100W
lamp with 50% efficiency, doesn't that mean you're going to be consuming
200W of power?

Of course, then you have to convolve the spectrum with the plant's
wavelength requirements to determine the light's true usefulness, as you