Wellington pretty much hit it on the head. Here are my recommendations based on price and personal use (as in, this what I actually use):
Get two of these: http://www.walmart.com/ip/Bayco-10.5-Brooder-Clamp-Light/14003468
They also have them at lowes and Home Depot. Just make sure whatever you get has a ceramic base
Then get this for pure heat:
http://amzn.com/B001F9CV7K
And get this for Heat/UVA/UVB:
http://amzn.com/B0002AQDJK
Get two of these: http://www.walmart.com/ip/Bayco-10.5-Brooder-Clamp-Light/14003468
They also have them at lowes and Home Depot. Just make sure whatever you get has a ceramic base
Then get this for pure heat:
http://amzn.com/B001F9CV7K
And get this for Heat/UVA/UVB:
http://amzn.com/B0002AQDJK