like flintstoned said, someplace like a home depot will usually have an entire wall of timer this and timer that, all rated for all sorts of stuff. they are usually in the 10-20 dollar range. my only suggestion is to skip digital timers and only use mechanical, and make sure there are 2 outlets on the timer (trust me). grow shop timers would be my first choice because they are made specifically to work with indoor garden equipment, but i know not everyone has one close by. i use a sunleaves mechanical timer and mine was 20 bucks. worth every penny.