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I'm putting up this thread because I see a lot of posts about people using Zoo Med Powersun or Exo Terra Solar Glo mercury vapor lamps. I know these are the most easily available and that is why they are the most commonly used. However, you are wasting your money on these cheap bulbs. There is a far superior lamp made by ReptileUV called Megaray. It is superior because 1) the amount of UV they put out and 2) the amount of time that they will output that UV (decay time).
1) Amount of UV:
Here is a video showing a side by side comparison of Megaray, Powersun, and Solar Glo.
If you don't feel like watching it, it sums up like this. At 13 inches and measuring with a Solarmeter 6.2, 100W Megaray produced 148 µW/cm², 100W Powersun produced 18 µW/cm², and 100W Solar Glo produced 32 µW/cm².
2) Decay Time:
I used Powersuns before and had to replace them quickly, often in less than 6 months. The phosphors they use to produce UV decay quickly. On the other hand, I have three Megarays running right now, 100W and 160W, that I have not replaced in 2 years. I have a UVI meter to check the output and it is virtually the same after two years of constant use. These are high quality and I will always recommend them over other brands, especially Exo Terra Solar Glo and Zoo Med Powersun.
They are available at http://www.reptileuv.com/ or http://www.bigappleherp.com/
http://www.reptileuv.com/
I don't get any kickbacks for recommending these lamps, but I have been using them for almost 10 years and have only had good experiences. The owner, Bob, is a stand up guy and will help you with any problems from technical lighting issues to reptile rehabilitation issues. They carry a 6 month warranty and do not require you to ship back the deficient bulb.
You will not be disappointed.
1) Amount of UV:
Here is a video showing a side by side comparison of Megaray, Powersun, and Solar Glo.
2) Decay Time:
I used Powersuns before and had to replace them quickly, often in less than 6 months. The phosphors they use to produce UV decay quickly. On the other hand, I have three Megarays running right now, 100W and 160W, that I have not replaced in 2 years. I have a UVI meter to check the output and it is virtually the same after two years of constant use. These are high quality and I will always recommend them over other brands, especially Exo Terra Solar Glo and Zoo Med Powersun.
They are available at http://www.reptileuv.com/ or http://www.bigappleherp.com/
http://www.reptileuv.com/
I don't get any kickbacks for recommending these lamps, but I have been using them for almost 10 years and have only had good experiences. The owner, Bob, is a stand up guy and will help you with any problems from technical lighting issues to reptile rehabilitation issues. They carry a 6 month warranty and do not require you to ship back the deficient bulb.
You will not be disappointed.