Product Specifications:

• Usable camera : CANON digital camera, NIKON digital camera
• Guide Number : 44m, 145ft. (ISO 100), 62m, 205ft. (ISO 200)
• Illumination coverage : 24-105mm (16mm wide angle diffuser)
• Turning head : 90 degree upward, 90 degree to left, 180 degree to right
• Power source : 4 X AA or equivalent Mi-MH, lithium
• Number of flashes : 200-1500 flashes by fresh alkaline batteries
• Energy saving system : 2 minutes to stand-by mode, 30 minutes to shut down after the power on or the last use of flash unit
• Recycling time : 5 sec., with fresh alkaline batteries.
• Flash exposure control :
  E-TTL and E-TTL II for Canon cameras 
  i-TTL for Nikon cameras
• Manual(Variable power) :
  6 levels : Full - 1/2 - 1/4 - 1/8 - 1/16 - 1/32 powers
• Wireless mode :
  SD: Slave Digital (with 6 level)
  SF: Slave Film (with 6 level)
  Wireless TTL remote Channel 1 Group A (Controlled by master flash)
• Flash Power Lock:
  FE lock (for Canon) / FV lock (for Nikon)
• My TTL Setting
• AF Assist light : Infrared LED for distance of 0.7 to 6 meter.
• Color temperature : 5,600K (same as daylight)
• Flash duration : 1/800sec. to 1/20,000sec.
• Camera contact : Hotshoe , X-contact, External Synchro socket
• Accessories included : Shoe stand, pouch
• Dimensions : 77(W) x 130(D) x103(H) mm / 30(W) x 51(D) x 40(H) inches
• Weight : 315g (without battery) / 11oz