Vivitar DF200 Digital Flash 200 Guide number of 92 @ a 100 ISO equivalent Choose from 4 selectable power levels and lens coverage from 28mm to 105mm (equivalent in 35mm photography) 330 degree swivel and 90 degree vertical bounce adjustment allow for a variety of lighting options Included mini flex pod and shoe mount help to make attaching the flash as easy as it is to use Uses 4 AA batteries (not included); Accepts Alkaline; NIMH or Lithium-Ion rechargeable batteries