Quick Herpstat / AP T10 Question

[Actuary]

I ordered two AP T10's with basking shelf, LED, and RHPs. I am looking at getting a Herpstat thermostat to control the environment and have two quick questions:

1. Do I need to get a Herpstat 4 in order to control two RHPs and two sets of LEDs?
2. Does anyone know if the AP LED's are dimmable?

I am just wondering if people with multiple cages use the Herpstat to control lighting in addition to temperature, or do you simply have lights controlled with a cheap on/off timer.