I use a 100 watt incandescent for daytime heat, and a 60 watt blacklight bulb for nighttime heat. Cheap and works just fine. You don't need those expensive "reptile" lights.
Now, UV lighting is of course a whole 'nuther animal altogether... A good all in one is a MegaRay. They are pricey but worth it.
Ceramic Heat Emitters also work great. They last for years and use less power than a similar sized light bulb. Only downside is that they can be pricey and don't give off any visible light.
I use a 100 watt CHE to heat my 50 gallon breeder Leopard Gecko setup.