• Battery: Lithium-ion • Wavelength Range: 420-490 nm • Light Intensity: = 1300 mW/cm² ± 200 • Total Continuous Run-Time with Fully Charged Battery: 120 minutes • Dimensions ◦Diameter: .86 in/ 22 mm ◦Length: 8.6 in/ 219 mm •Weight: 3.7 oz. •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 (55°-90° F)