The Elinchrom D-Lite 400W/s RX 4 Flash Head raises the bar for what a small, portable strobe can accomplish. The D-Lite RX 4 auto-sensing, multi-voltage flash can detect any AC power source between 90 and 260 VAC and can vary the power by up to 5.0 stops in 1/10 stop increments. Recycling is incredibly quick—between 0.35 and 1.6 seconds at 115 volts—and flash durations can be as brief as 1/800 seconds at full power. But that's only the start.

The D-Lite 400W/s RX 4 is packed with professional and convenient features usually found in flash heads twice its price. Forget about tripping over PC cords. Although this head accepts one it also has a built-in EL-Skyport Receiver with eight frequency channels that can handle four distinct groups of flashes. Separate purchase of the EL Skyport ELS Speed Transmitter not only allows you to trigger your flash at distances up to 120 m but gives you control of power on/off, modelling light functions, and Speed Sync activation. Free software for Mac and PC computers is available, providing additional features such as Flash-Delay for strobing effects. Add an optional Wi-Fi module to the transmitter and you can use specially designed apps that allow full remote control via your iPhone, iPad, or iPod Touch.

D-Lite 400W/s RX 4's bayonet mount accepts all Elinchrom accessories and softboxes up to 135 cm. It comes with a power cord with a U.S. plug, sync cord, flash tube, and protective cap. The included 120V 100W modelling lamp must be swapped out when using the unit in nominal 230V electrical environments.