I wired up 4 of these. I love the LED's because at 5 Watts each they only use 20 Watts.
http://www.ebay.com/itm/E27-38-138-LED-2-3-5-7W-Plant-Grow-Light-Bulb-Garden-Hydroponic-Lamp-Store0O333D_20140122035825560.jpg/310887578084?_trksid=p2047675.c100005.m1851&_trkpa rms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3 D28773%26meid%3Ddec0073f3eb141618f3190fd6e257373%2 6pid%3D100005%26rk%3D3%26rkt%3D6%26sd%3D2617295975 29&rt=nc