The D-Lite RX ONE is a small but robust compact flash from Elinchrom, at 100WS, this head has approximately twice the power of speed lights The versatility of the Elinchrom system remains in its accessory range, Elinchrom has some of the best accessories allowing the photographer to change the nature of their light. Used outside the studio, the D-Lite RX ONE is the perfect creative companion to an existing Speedlight system, making use of the in-built intelligent slave Cell to offer perfect flash synchronization. This strobe features: Built-in EL-Sky port receiver for Radio triggering. EL-Sky port with 8 Frequency Channels with 4 Groups. EL-Sky port Speed Sync mode for synchronization up to a 1/320 s on enabled SLR cameras. Pre-flash detector system to enable the use of D-Lite ONE RX with speed lights. Power Auto-dump.5V sync socket for maximum protection of digital cameras. Automatic temperature controlled ventilation. Multi-voltage auto-detection: 90-270 V (excluding modelling lamp).Visual Flash Confirmation option. The modelling lamp comes on to confirm the flash has been triggered. Proportionality adjustment of the modelling lamp range. Variable f-stop steps: 1/1, 5/10, 4/10, 3/10, 2/10 or 1/10 steps are available. Programmable ready beep function. Radio Remote Control of flash power settings, Modelling lamp on/off, Speed sync mode and Triggering. Firmware update option. Accessory bayonet accepting all accessories and Rotalux soft boxes up to 135 cm. Stand bracket with extra umbrella fitting for larger umbrella shafts.