Any advice on how to lower the heat without a thermostat

The bulb i have in is a red infrared bulb

I fed my snake today and got a new bulb
*the last one was too hot aswell!* but the other bulb was stupidly hot
Think it went to 100 and i turned it straight off

And it seems to be spending alot of his time behind the big log under the heat
So i assume it cant be that bad?
Should i leave the bulb on overnight? 94.7 is the highest ive seen for the 9 hours ive had it on btw?

Thanks
Mark