The Bower SFD35N Digital Auto-Focus Flash is a fully dedicated i-TTL program flash designed to work with the Nikon cameras for improved flash photography. 

Designed with professional and amateur photographers in mind, the SFD35 flash is equipped with a guide number of 112' and has a zoom range of 28-85mm. 

Also the head will tilt upward 90° and rotate right 150° and left 180°. An AF assist light is available in low light situations and it has a recycle time of 4-6 seconds at full power. 

Additionally, it runs on 4 AA batteries.

An Infra-Red Auto focus assistant beam ensures proper lighting under low lighting or complete darkness conditions.
Auto cut-off after 3 minutes.