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-   -   Halogen and Metal Halide lights (http://www.hydroponicsonline.com/forums/showthread.php?t=1313)

kelvin 02-14-2009 08:32 AM

Halogen and Metal Halide lights
1. What is the difference between Halogen and Metal Halide lights?
2. For a six plant garden, wouldn't 1000 watts be excessive?

Ron 02-14-2009 08:33 AM

1. Tungsten Halogen lamps are as inefficient to operate as incandescence and are very expensive to operate. Their
lumen-per-watt output is very low.
2. 400 watt Metal Halide or High Pressure Sodium is good for 2 to 6 ft. square area and they last longer too.

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