2 PROFESSIONAL STROBE LIGHTING UMBRELLA KITS FOR PHOTO STUDIO PHOTOGRAPHY Two strobe light units: each unit has FlashFlash Power 180 watts;Modeling lamp 35 watts; Power setting 1/4 to full variable output Recharge time 1.2 - 2.2 seconds; F-stop 42 GN; Triggering Sync cord or Infra-red light; Color temperature 5200-5500k Infra-red photo cell shading hood and flash sync cable socket, ensure the sync induction Two 7.7 feet heavy duty light stands Two 40" translucent optical white umbrellas.