Firefly ES201 is a compact, high powered LED light source compatible with standard endoscopes and the Firefly DE1250 Wireless Endoscope Camera. It provides brilliant LED lighting for a variety of applications. Powered by a long lasting, rechargeable lithium battery, this light source is a truly innovative and mobile solution uninhibited by wires. Unlike other portable light sources, the ES201 delivers these breakthrough capabilities and much more at a highly economical cost. Features: Completely Wireless Operation 5 Watt Ultra-Bright LED 4 Hour Operation 2 Rechargeable Batteries and AC Charger Included Lightweight Waterproof Rugged industrialised construction