The wiring diagram in this file is the scan on the wiring for DUAL SPOT/FLOOD LIGHTS on our birds. This is from BB. I found that I have a dual problem: bad joystick and a bad relay. In the middle of the circut board on the diagram is a relay. It is a TYCO (PORTER BRUMFIELD) # R10-E1-X6V90. BB refers you to Wesgarde (800-554-8866) www.wesgarde.com but they are presently out of stock. I found mine at www.newarkinone.com (800-463-9275). The Jabsco repair guy (Dave Ripple) said If we get him a good part # he will sure stock em for US !! He is a really great guy very patient (I have called him probably 10 times) Dave ASKED me to put him and the contact info on the forum. He said he has about 100 of our lights in stock, but that they are really very durable. I can help you if you have some problems with yours since I have mine in the process of figuring it out. The light bulb is a GE4700. That should probably cross to other brands. I bought mine at Grainger part # 1C522 about $40.00 Search Light Repair Center 2747 SW 27TH Ave Miami Fla. 33133 1-800-856-1583 Attn: Dave Ripple Thanks Scott Bishop