I think the lights mentioned above are called Fly Lights or something like that and are made by Great Planes. They sell for around $13 and an additional light "cable" is approximitly $8. they can be plugged into a reciever for power and can run 1-4 lights if you make adapters, otherwise they just run 2 lights. they can also be switched from solid/continous light to flashing. the unit is very small and comes with doublesided tape for mounting. It is on the Electrifly website. Hope that helps!