Greg,
MCM Electronics is a great place to get stuff including the circuit breaker. Check at
www.mcminone.com and they have a 100Amp and a 140 Amp Part # 60-3760 and 60-3765 respectively at $19.60 single unit price. The light this year came from Japan but in previous years was from North American Signal
http://www.nasig.com/ in my hometown. The lights supplied by FIRST drew about 4 amps, this year's light was a lot lower primarily due to a tiny motor for rotaing the reflector.