Halogen Vs. Metal Halide

seansx · 01/13/2008, 02:54 AM

Halogen Vs. Metal Halide

whats the difference in a 250 watt halogen bulb and a 250 watt metal halide bulb??
Halogen any good for corals?

hahnmeister · 01/13/2008, 05:26 AM

The spectrum of a halogen is only going to range from about 3000K to about 5000K at best. Halogens boast an efficiency only slightly better than a regular filament bulb... about 20 lumens/watt was the best I have seen... where a halide can easily be in the 90-100lumen per watt range. So long story short, a halide puts out about 4-5x the light per watt compared to halogen.

01/13/2008, 02:54 AM	#1
seansx Registered Member Join Date: Dec 2007 Location: Sonora, Mexico/Tucson, Arizona Posts: 75	Halogen Vs. Metal Halide Halogen Vs. Metal Halide whats the difference in a 250 watt halogen bulb and a 250 watt metal halide bulb?? Halogen any good for corals?

01/13/2008, 05:26 AM	#2
hahnmeister Moved On Join Date: Sep 2005 Location: Brew City, WI Posts: 10,156	The spectrum of a halogen is only going to range from about 3000K to about 5000K at best. Halogens boast an efficiency only slightly better than a regular filament bulb... about 20 lumens/watt was the best I have seen... where a halide can easily be in the 90-100lumen per watt range. So long story short, a halide puts out about 4-5x the light per watt compared to halogen.