Although the person who started this thread is not interested in discussing the subject. I AM. Matter a fact, anybody who offers prospective on the UVB suject gets ridiculed by tahoe. It is my suspision that tahoe is a Narc trying to misinform his subscribers on the benefits of indoor UVB by way of placebo effect.In an attempt to rekindle the suject and provoke thought I have this to say...
Please keep in mind that I'm not an expert on Reptile lighting.... As far as I know there are 3 basic types of reptile lights. floro, cfl, and MV. 2 of these are not even worth mentioning (MV & cfl) and the 3rd one (floro) is too WEAK to have an effect on a descent RADIUS crop, but instead the SMALL fraction of a canopy.If you MUST buy one, get a long bulb (36" or longer) becasue the majority of the UVB the bulb produces comes from the middle, with not much coming from the sides. Also: the UVB in those weak reptile floros will disapate quickly over short distances.UVB rays don't travel fast and bounce around like UVA rays do. The top colas COULD be getting UVB, and at the same time 1 foot below and next to it will get almost nothing. If you do decide to buy one be sure that you are clear on the ACTUAL UVB output. When these lights advertise 10% UVB they are talking about 10% of the UV output is UVB. So if a lizard light puts out 20% UV and 10% of that is UVB ,then in actuallity your not really getting 10%.At the same time if a lizard light were to give out 40% UV and 6% of that is UVB then that would be the light emitting the most UVB. The last and most LEAST important reason is because most but not all lizard lights stop letting out UVB rays after about 6 months. The light may not be burnt out but its not doing its job either. There are many ways to stimulate the production of resin withOUT UVB. If you are growing in a room with plenty of space,no heat issues and u got $$$, I would recommend looking into suntan booth lights, or psoriasis treatment bulbs.The lizzard light in my view is not the most practical idea.