Why not stick with the 60Watt regular house white light bulb within the warning guideline, and then raise ur branch (basking spot ) higher,just to be benefits with the heat n uvb in the same time.
Ur welcome ,and u can use the digital temperature thermometer gauge to test the proper temperature depending on what type of the chameleon u have by reading the forum source chameleon care sheet ,it will give u some guide line to follow.
You can get "spot" in any style, you just have to watch out for beam angle/width. A narrow 35 watt might be too hot, yet a 75 watt wide might be perfect. I run 35watt narrow halogens but i place them off set of the branch, so they have to vertical bask to get full sun. This helps me because it prevents them from getting the top of their head burnt. However some chams are not smart enough to find and vertical bask using my setup. Just have it at an angle so its not directly pointing down on their head.
Any of those bulbs are good there is no best bulb when choosing a basking bulb you just want to make sure that the "basking spot" is the correct temp depending on what kind Cham you have,this will differ with species. Also you want your Cham to be able to move away from his basking spot to a shaded area or lower in the cage if he's to hot or if he just wants to sit under uvb light. Main objective when choosing basking bulb=correct basking spot temperature, you can achieve this by moving the basking branch up or down and checking it with a probe or a IR temp gage. If you have a IR temp gage you can check your chams temp directly when he/she is basking, point the gage at his side that faces the basking bulb and it will give you a accurate readout. Proper basking temps for you Cham help digestion, easiest way to check for proper digestion is POOP. Check out some threads on here about poop lol. I would save your money for something else for your Cham don't buy a new fixture...many people just use regular 60 watt house bulb so I wouldn't go out of my way buy a new fixture just for a spot light bulb! Good luck hope this helps. post a pic of your setup and people on here can give you some really good advice as to what to do.
