Most people on here tend to stay away from the coil type UV bulbs since some of the earlier models were known to cause blindness in chams (those issues have since been resolved). I used the same hood and bulb that you had pictured when I got my baby Nosy Be at a reptile show since it was part of the included setup and fit the smaller cage (16"x16"x20") and I never had any problems. My only complaint was that it only put out a small area of light directly under the bulb so when it came time to move my guy in to a bigger cage I got rid of the coil style bulb and went with a linear type bulb that spans the width of the cage and puts out a lot more light. Most people on here use the linear type Zoo Med Reptisun 5.0 bulbs as a standard but some also use the 10.0 bulb depending on the size of the cage and how densely planted it is. I would recommend taking a look at one of our site sponsors, lightyourreptiles.com. They sell high quality fixtures with the Arcadia bulbs which are far superior to what you typically find in the stores. I have two of their fixtures that have the Arcadia bulbs as well as plant lights and really like them.
The other fixture you have for your basking bulb should be fine but the 100w bulb may be too hot depending on how big your cage is, how far away your basking spot is from the bulb, and how old your cham is. I use the same bulb you have pictured for my adult Nosy Be in his 24"x24"x48" cage and it keeps the basking spot around 92* but I use smaller 40w or 60w household bulbs for my girls cages to keep them around 82-85*. You'll have to set up your cage and see what temps you get from the bulb and if you're close to where it needs to be you can raise or lower the fixture as well as the basking branch to help dial in your temperature.
Do you know what type and what age chameleon you'll be getting yet?
