Lucky Herp 100w MVB

CooperDragon Sicko
Staff member
I picked up a Lucky Herp 100w MVB from Chewy ($45) so I could test it out. Doing an initial burn-in now.
It has a nice wide beam and the bulb is similar to the BR40 I have for plain basking. I have it in a fixture that is 16'' off the ground (where I had it for temperature with the basking bulb) and is putting out 3-6 UVI across an 18'' radius at about 12'' above the meter. This is encouraging so far. I like the beam width better than the (disappointing) PowerSun.
Temp reading right under the bulb is around 97 with 81 at the corners of the blanket. This is sitting in the open rather than in an enclosure, so temps may vary.

I'll let it burn in for a while and see what the UVB output degradation looks like. That was the main issue I had with the PowerSun - that went to sub 2 UVI after a week or so. I will post more info as I get it.


CooperDragon Sicko
Staff member
Original Poster
After burning in for a while, it did lose a bit of power. It still has a nice wide beam, and at 14.5'' up (providing around 100f) it has UVI of between 1-2 across about a 2' radius. Darwin has been testing it for me a bit and seems to like it. It's nowhere near as powerful as his Arcadia, but I'd rank this a bit better than the PowerSun after burn-in.

CooperDragon Sicko
Staff member
Original Poster
Darwin has been using the Lucky Herp as a travel light for a while now and still seems to like it a lot. I mount it about 12'' up and get 3.x UVI and it seems pretty stable over time. The temps are still staying around 100 at that range.

I picked up a couple more of these to test out. The first one is the clear model. I burned that in for about a week and it still has a really intense spike of UVB right in the center, similar to the Megaray. Even after burn in it was out around 9UVI right in the center (down from about 13) with a quick dropoff to the sides down to around 3 UVI. Temps are good, but the spike in the center makes it pretty useless. I might keep it running for a while and see if that mellows out after a long burn, but unless it evens out across the beam I can't recommend it.

I also picked up another of the "coated" model. I'm not sure what the coating is (likely neodymium) but it appears to diffuse that center spike. This is the same 100w model that I started using a year ago. At 12'' up it's still producing a nice wide beam of 3-5 UVI and 101 surface temps. Combined with the fairly good longevity of the other bulb I've been using, I'll say that this appears to be a pretty good budget model option and I still recommend it when compared to a PowerSun or similar.

I still need to pick up one of the "frosted" models and see how that goes.

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