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Posted by Piscivora on May 09, 2003 at 14:42:13:
I was looking into all the lights on the internet for reptiles and found that UVB is sought for Vitamin D synthesis. I found lots of flourescent tubes and a few frosted mercury vapor floodlights. Flourescents dont have much intensity to fill a large cage. The MV's claim to radiate 7 feet however they can make people look like cadavers. I also searched for sun lights and found info on HID lighting also being able to penetrate farther than flourescents.
There are two types of HID: Metal Halide and High Pressure Sodium. Metal Halide produces more blue light (beneficial UV?) from what I found, it better resembles sunlight. My question is this - I found a small (100W) fixture called sun system or something similar and was wondering if this would be beneficial to bearded dragons if I can't give them the required mininmum 30min - 2 hrs dayly sun that is reccommeded. I asked the salesman at the store that sold the light and he said that it is good for vegetative growth. If the lizards benefit from this light I might buy it and set up a mini garden of collard, kale and other leafies that they can eat at will (using organics of course) because the guy said the light was designed with a spectrum for plants. He also looked up the wavelengths and told me it was from 300nm up. I would post a link to the light I had in mind but I'm not sure if the rules allow that ?? The salesman also said that Aquariums use Metal halide lights for their setups. I imagine this would be beneficial for many types of biota in a marine setup both plant and animal. I feel really bad now since I just have a measly incandecet reflector light using 40Watt GE reveal bulbs.