My beardie Lzzy is a little over a year old and has a vertebral injury due to calcium deficiency. The vet I took her to was extremely knowledgeable and recommended I use the mercury vapor bulbs for UV instead of the t5 I've been using. So I bought the bulb and I've gone through two in the past 4 days. They keep burning out. I had purchased the Zoo Med 100w mercury vapor UVB. Any idea what I'm doing wrong? These are awful expensive to keep having this happen and I want to get the light situation figured out so Lzzy can start moving in the right direction health wise. I've tried searching online cause I'm wondering if its my light fixture that is causing them to keep blowing but I can't find any information one what I need.