i have an awesome timer from Lowes! best secret ever! you can program it daily weekly monthly and minute by minute on a digital readout. It was 20$. Its also outdoor weather proof and waterproof (Havent dropped it in the tank to test tho haha). It is green. Downside, only 2 plugs can go in it. It is so easy to use and HIGHLY programable! I love it! At my Lowes, it was by the fans and lighting section. Actually right underneath the fans the end of the fans where it turns into ceiling light fixtures/chandalier.