The Photogenic Ion Lithium-ion Pure Sine Wave Inverter System allows you to take your studio strobes on the road or off the road without electricity and without noisy generators or bulky old-style inverters. Weighing in at only 3.5 lb including its battery, the Ion measures only 7.5 x 4.4 x 3.3 but is able to deliver hundreds or even thousands of full power flashes depending on the flash head in use. For example, Photogenic's 1,000W/s PL1000DR gets 300 full power flashes on a fully charged battery while their AKC160 will get a whopping 2,050 flashes from the same battery. Of course, you can double or triple your capacity by simply purchasing extra batteries which can be charged apart from the inverter. Extra chargers are available to charge more than 1 battery concurrently. Convenience features include a USB port to power computers and other electronic devices and an LED fuel gauge that allows you to check on remaining power at a glance. The system includes the ION Inverter, battery, charger, light stand clamp and strap. Note: flash capacity specs are based on Photogenic flash heads but other brands of flash heads may be used with the inverter. Power input is 100 to 265VAC, 50/60Hz but output is 120V only.