Flashpoint XPLOR 600 HSS Battery-Powered Monolight with Built-in R2 2.4GHz Radio Remote System and R2 Transmitter for Sony (Bowens Mount)(AD600) Flashpoint XPLOR600 600ws Monolight - Flashpoint R2 TTL Transmitter for Sony - 600ws Flashtube with Protctive Cover - Standard 7" Reflector - Rechargeable Lithium Battery - AC Battery Charger Set - Compartment Case - Flashpoint 2-Year Full USA Warranty 600Ws studio quality light without wire Guide Number 183 (ft) / 61 (m) ISO 100, with standard reflecto Built-in 2.4G R2 Radio Remote System Compatible wireless system: Fully supports the Canon, Nikon and additional systems in Flashpoint R2 remote system. Integrated professional 11.1V/8700mAh lithium battery pack