Britek 300w/s Battery Powered Strobe Kit (2) 150w/s Battery & A/C Powered Strobes Each strobe uses 6 AA batteries (not included) Strobes may also use A/C power for faster recycle time. 110v-120v Strobe includes modeling lamp, half/full power settings, built in slave sensor 1 year warranty except for bulbs which are guaranteed to work on arrival.