dlstilts:
Hmm yes that might do it!
However does anyone know if a standard power distribution strip could handle the 4 1000w floods? Thanks!
That's only 4 Amps so a standard 13A outlet and distribution strip should cope with that with no trouble.
The flood lights I've seen have been incandescent filament bulbs, and this type don't like being turned on and off very quickly (thermal shock loads are one of the main things affecting their life). Perhaps you could mitigate this by ramping them up and down using a chopper to reduce the rate of heating/cooling. Or perhaps you don't care, or are using a type of bulb that copes with this sort of thing. If you want it to produce a short intense flash, have you considered using a strobe instead?