Oh also the bulb isnt what im concerned about when it comes to the kitten its the tank lid , the lid lays on the lipbof the tank and has pieces on all 4 corners that slide under the lip , so whereas i know it cant be pushed up by my snake i fear it falling in on the kittens weight (ive had times i was putting it back on and if it isnt balanced correctly before the locks are in place itll try and fall in , i haven't noticed it having that problem once the locks are on but id rather not take the chance)