Sony Alpha DSLR-A100 Dual Macro LED Ring Flash — Alpha Interface (Camera Not Included)

Designed for use with Sony Alpha DSLR-A100 cameras via the Alpha interface, this dual macro LED ring flash provides close-up lighting with consistent output. Guide number (flash): 15 Feet. Effective illumination distance: 1.96 Inches to 5 Feet. Color temperature range: 3000-15000K. Exposure time: 1/100s. Power source: 4 x AA batteries or Ni-MH Rechargeables. Weight: Approx. 7 ounces.