After much tinkering with a NE555 timer circuit I finally found someone who makes what I needed to build. Sho-Me makes an LED strobe driver. It is rated 12v at 2amps. My question is, the P7 needs the 2amps but only 3.6 volts according to my LED pro 2.12 calculator I can use a 3k .02 watt resistor and will be safe? Of course I will be heat sinking but only being driven as a strobe and not constant will I have much trouble with overheating?