Mercury Vapor Bulbs Better in Winter?

Zen Reptiles

Avid Member
So, with the collection slowly growing, I am thinking of Mercury Vapor bulbs as a viable option to cut down on power costs in the Winter. Winters can get costly to heat the animals, with space heaters going, lights going, furnace going, etc etc.

Where I live, it can get VERY cold in the winter, into the -40C range, and some days are just plain cold inside even with the heat on. For about 2 months in the dead of winter it is a real struggle to keep everyone comfortably warm here.

I like the idea of Mercury Vapor bulbs during the winter, and old fashioned lighting in the summer, since they get outdoor Sun most of the summer when it's into the +30C range.

My questions....

1) What wattage have you found works best for both heat and UVB exposure?

2) What brands are best, and what makes them different from others?

3) Have you tested hardware store brands of MV bulbs, what were the readings?

4) With the amount of heat given off from MV bulbs, could I use one bulb placed several inches away to heat TWO cages next to each other?

5) Have you had any problems with MV bulbs, their safety, their UVB radiation, their heat output, etc???

Thanks in advance.
 
I have used MV bulbs for years. I found the Zoo-Med bulbs to be very fragile, the slightest bump or thump would blow the filament when hot. I was happy with the Exo-Terra brand till I got a solar-meter... Now I'm surprised and disappointed by their low UVB output! I have yet to find the Mega-Ray bulbs in any store but from what I've read they are the superior brand. As far as heat goes, the 125 watt size seems just about perfect for a 2x2x4 cage. Cheers!
 
I have used MV bulbs for years. I found the Zoo-Med bulbs to be very fragile, the slightest bump or thump would blow the filament when hot. I was happy with the Exo-Terra brand till I got a solar-meter... Now I'm surprised and disappointed by their low UVB output! I have yet to find the Mega-Ray bulbs in any store but from what I've read they are the superior brand. As far as heat goes, the 125 watt size seems just about perfect for a 2x2x4 cage. Cheers!

ive been using the powersun for a very long time now, and YES the bulbs are VERY fragile when warmed up..if you even just think of it moving it will blow, or if you get misting on it..as for the megas i havent tried them yet, im waiting on my current bulbs to get low on uv output first, but ive heard good things about them!
 
What I am reading is the 100 Watt Mega Ray UV LOW would be the ideal choice. Any input on this light, or recommendations on another??

What kind of heat do these things throw @ 12 inches away, and for those of you with a UVB meter, what is the reading @ 12 inches? Can it be closer than 12 inches or is 12" the rule?

They say to have it on a timer for 4-6 hours a day, do you do this? Is it okay to have it on 12-13 hours as their light/heat/uvb source without other lighting?

Thanks!
 
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