The FLASHlite 2.0 is a revolutionary LED dental curing light utilizing a light emitting diode (LED) for the polymerization of all CQ materials quickly and efficiently. Featuring a small, light weight design, the FLASHlite 2.0 is well suited for everyday needs such as curing liquidam or small restorations. Compact and cordless design for curing on the go. Shortened head angle allows easy access to posterior teeth and decreases patient discomfort. Advanced lithium-ion battery for hours of hassle free operation. Ergonomic Pen-Style construction to minimize clinician strain. Technical Specifications: Battery: Lithium-ion Wavelength Range: 460-480 nm Light Intensity: = 1100 mW/cm² ± 200 Total Continous Run-Time with Fully Charged Battery: 210 mins Dimensions Diameter: .86 in/ 22 mm Length: 7.8 in/ 198 mm Tip Diameter: 7.2 mm Weight: 3.8 oz/105 g AC/DC Wall Plug Adapter- Class II Input Voltage: 100-240 V ~/ 50-60 Hz/ 600 mA Output Voltage: 9V=/ 2.0A max. Charger Base with Built-In Radiometer- Class II Time to Charge Discharged Battery: Max. 5 hours" Operating Temperature: 15° C- 32° C (59°-90° F)