GVM S200 Overview
With a built-in handle that makes it a great choice for run-and-gun shooting, the 200Ws GVM S200 Ttl Li-Ion Flash With Trigger Kit runs on a rechargeable lithium-ion battery that will give you 500 full-power flashes and thousands of low-power flashes.
Recycling time is a fast 0.01 seconds at minimum power to 2.1 seconds at maximum power on a full charge and it supports High-Speed Sync up to 1/8000 second. The GVM S200 Ttl Li-Ion Flash With Trigger Kit has wireless capability with the included wireless trigger that allows you to adjust the flash power wirelessly at a distance.
The flash and the included trigger has 16 channels and four groups for complex setups or to avoid interference from other shooters.