This review of the Venus Optics KX-800 Macro Twin Flash is by Bernhard Sperling:
In early April 2015 the Chinese manufacturer Venus Optics announced the KX-800 Macro Twin Flash. The announcement was also reported in an earlier NR post.
The flash is fitted with three flexible arms, of which two carry each a flash tube unit and one shorter middle arm carries a led permanent light. The flash is manual mode only. The manufacturer claims the following features:
• GN 190 (in feet at ISO 100), GN 58 in meter
• Rapid recycle time (approx. 2-5 seconds)
• 48cm long dual flexible arms
• Independent output control
• LED focus assist light
• Weight: 1 pound
• Compatible with Canon/Nikon/Sony A/Pentax cameras