Last Updated (31 July’13):
Neewer TT520 is a Flash Speedlite for Canon/Nikon Digital SLR Cameras. It has a guide number of 33 (ISO 100), a color temperature of 5600K+200K, and 4 AA batteries (Alkaline or Ni-MH are usable) power the unit. One flash may last 1/800s~1/2000s depending on the 1/8 – stop increment selected. One one set of batteries, expect 100-1500 flashes and a recycle time of approx. 0.5-5s. The flash can be rotates 0~90 degrees, and it horizontally rotates 0~270 degrees.