I have a 55 watt PC light strip and a 15 watt NO light strip on my tank. The NO strip came with my tank. For the 15 watt NO, I am using an actintic bulb, and the 55 has a 50/50 bulb. I have it set where the actintic comes on 1/2 hr early in the morning, and goes off half an hour later at night. Also, check on Ebay. There is a guy on ebay who sells the plastic PC light strips for really cheap, imo. I got the 55 watt PC with bulb for $55.00

And, it works great. As soon as i get more money, I am thinking of ordering another one