There have been problems in the past with coiled UVB bulbs causing severe eye problems. Your light is probably safe, but your safest bet is to get a linear bulb.
This thread talks about the new, reformulated supposedly safe CFL UVB bulbs and how to tell if you have one or if you have the old bad ones. https://www.chameleonforums.com/repti-sun-cfl-old-vs-new-31927/
The coils can cause severe eye issues including blindness. The safest and most recommended UVB bulb is the ReptiSun 5.0 linear tube.