I have been using these bulbs for my reptiles for about 5 years now and the only thing about them I don't like is the price (which is any UVB bulb, really). They are long lasting, so I start using my meter to test the UVB levels at around 10 months. So far, I haven't had any drop to an unusable level before a year was up.
No issues. Bulb always comes in quickly and havent had one yet that came in broken.
Tube UVB is the way to go for your reptiles. Never go coil. These tubes (generally) last about 9 months before needing replacement. I have a UVA/UVB meter to check every month or so, to determine UV output for my bearded dragon. I've not had one yet that burned out suddenly -- All have lasted until the UV output was degraded and needed replacement. Solid recommendation as essential for reptile keepers.
We use for baby bearded dragon. He enjoys basking. Judging by his behavior, this product provides the right amount of light. We turn on at aprox 10 am and turn off around 10 pm. Working without a hitch for 2 months.
It was great for my beardie
Is there a "36 bulb that is more then 39w? Our daughter tank is about 30" tall and the temp is holding at around 80 and should be 90 degrees correct for bearded dragon?
I believe the 39w is the highest we have for 36".
For a bearded dragon, we recommend a gradient of 80 degrees to 100-110 degrees. Check out our care sheet for more info: https://reptileslounge.com/blogs/care-sheets/care-sheet-for-bearded-dragons