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Mercury Vapor screw head UVB Light bulb ?

Jan 28, 2009 by Ted | Posted in Reptiles

Hi, I'm looking for a site that I can order mercury vapor UVB lightbulbs from. I placed an order from reptileuv a month ago and after having sending 3 emails, they finally shipped it out today. I hear they have the best mercury vapor bulbs but I don't want to ever shop with them ever again.

Any recommendations on where I can find good quality mercury vapor bulbs online?

Honestly they are supposed to be the best. I was on their site the other day and saw that they were on back order for almost every bulb, so that may have been a one-time occurrence, may be worth trying them again...

You can get various types of MVBs from LLLreptile.com and Bigappleherp.com

I've used the T-Rex Active UV, same price as the megarays, but I've never had one last more than about 2 months... So I'm fed up with them.

I've also heard of Arcadia's high output UV, I think they're based in England

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Is UVB worth it? - Marijuana Growing

by Personal Use I Swear

I flowered using a UVB bulb this grow and I notice no increase in the potency of the buds. I also found out that UVB can & will increase the likely hood of bud mold, which happened to the top portion of one cola that was nearest to the bulb. The mold grew from the inside out, so I wasn't able to see it until it was too late. I lost about 5" total on that cola. The guy had posted in his journal, some bad effects of having the UVB on 12/12, in his later experiments, he proved that gradually increasing the duration of the light, from a couple minutes, up to a 4 hour a day maximum, Did in fact increase the resin content on the buds closest to the light. he had a SOG set-up, in wich one corner had the Reptile UVB oriented vertically. as I recall, the actual sides of the buds exposed to UVB had noticabley greater resin content than the other, unexposed sides Visable resin content is a better way of determining whether or not the UVB worked, Not just somones percieved potency. As you all should know, breaking up, grinding, touching, rubbing, holding, bagging, unbagging, packing (to smoke) will knock a great bit of crystal off ot the buds. also, when comparing potency, you'd have to have the same buds side by side, with clean glass and a magnifying glass(solar puffing) to truly examine and appreciate the differences.

Source: Is UVB worth it? - Marijuana Growing