NEEWER DS300 Studio Strobe Photo Flash Light with Bowens Style Mount - 300W Photography Monolight Short flash duration and fast recycle time Wireless power adjusting and flash triggering (optional) Compact & lightweight body with Bowens mount Equipped with M/S1/S2 flash mode Adjusts from 5. to 8. in .1 increments (1/32-1/1). Steplessly adjustable 15W modeling lamp.