heatbulb

I keep buying new ones but they keep busting, I’ve tried different brands of domes, different brands of bulbs but the heat always busts but not the uvb why?

I am new here sorry if I mess anything up. So I have a 120gal dubia. Com enclosure and I cannot get the temps right. I have a 150w reptisun basking light above the basking spot, but the basking spot surface temp only gets into the low 90s. the mesh blocks out most of the heat so I was thinking...

My hear bulb just broke, after removing it some pieces of red cardboard fell out. I'm not sure where they came from but I'm worried it's a piece of my lamp fixture. Can anyone tell me if they know that these pieces are from the bulb or the fixture?