Use a Zoo Med ReptiCare Ceramic Infrared Heat Emitter 100 watt, when you need a 24-hour heat source for specific reptiles in a 30-40 gallon tank application. These porcelain heating devices screw into a standard porcelain incandescent socket, giving off intense “muscle-penetrating” infrared heat, while emitting no light. The flat-faced design is more efficient and longer lasting than conical designs which build up excess heat internally, ultimately carbonizing the element. We have packed this ceramic heat emitter inside a bubblewrap-lined corrugated box to improve the odds that they will reach you unbroken. Hopefully this extra packaging will compensate for Amazon’s shipping inadequacies and UPS’s irresponsible abuse. This ceramic infrared heat emitter is also helpful if you need a night time heat source to maintain a minimum temperature level; controlled by a digital timer. Temperature outputs can vary depending on the type and brand of habitat, substrate and décor accessories. FOR SAFETY, before introducing your animal into the heated habitat, please allow 3 to 6 hours of initial warm-up time and then check the surface temps. We strongly recommend that you regularly take surface temp readings; to be aware of any changes due to seasonal or other issues. We have also included a bottle of our Chlorhexidine Solution 2%; 1 refill makes 32 oz. of working solution – just add water! This is the best cleaner for your reptile’s habitat; used and recommended by exotic animal vets for cleaning your cages and other habitat items. Basically, you spray and wipe and then if your reptile licks where you just cleaned, it won’t hurt them. Great for daily maintenance cleaning as well as monthly cleaning from top to bottom. See also our Carolina Custom Cages’ listing for “Chlorhexidine Solution 2%; 32 oz. Sprayer, plus 2 refills” and our listing for “Chlorhexidine Solution 2%; 3 refills make 32 oz. each of working solution”.