Zoo Med 26042 Reptisun 15W 5.0 T5-Ho Uvb Fluorescent Daylight White Lamp, 12

These bulbs are absolutely necessary for your reptiles, but the UVB light output drops off fairly quickly. We replace the bulb every six months for this reason. Although the bulb still lights up and provides illumination, the UVB that your lizard needs is not good after about 6 months.

These bulbs are great And I would highly recommend them

I can never find this size in stores. I think the price is decent, too. Any higher then Id just switch over to the standard 18.

Arrived broken

These bulbs are very good, but until amazon figures out that shipping light bulbs in envelopes is idiotic theres no point in buying them here. Update: Amazons customer service assured me the replacement bulb would be sent in a box. Nope, another bulb in an envelope, although the second one did survive the trip.

Ordered this for my chameleon off a suggestion from a youtube video and am happy that I did. Previously had a dome UVB light and this one fits perfectly across the top of my chameleons cage. Its definitely made her a lot happier being able to receive more lighting than the dome light! Definitely worth purchasing as well as it comes with one light in the hood that I purchased so the additional one is just backup for when the other goes out! SO SCORE all the way around!

Bulb never worked. As soon as I put it in the fixture, it flickered and then heated up on one end of the bulb to the point of smoking. Unfortunately, I waited too long to return.

Fits well into the lamp I bought, and provides ample heat

Plugged it in for my 6 months change and doesnt work straight out of the box

Perfect! We use these for our bearded dragon and she seems to like it. She loves basking underneath it :)