I had a dimmer switch going bad (over heating) and had a replacement in hand. Only issue was identifying which circuit breaker controlled it. I had my choice of 28 circuit breakers (poorly labeled by the homes previous owner) as to which one controlled the wall switch. Since I was the only person home that meant a possible 28 trips from the first floor to the basement and back again. What does this have to do with an iPad? Easy. I fired up iWatcher Pro on the iPad and aimed it at the ceiling fixture. Connected iPhone via Bluetooth to the iPad iWatcher Pro video feed and headed to the basement. Flipped breakers off and on one by one and watched the live video feed. One trip and done!!!!