Light source: 23 LEDs, 5000 Kelvin, CRI=95 Luminous density: approx. 600 cd/m² Power consumption: 4.1 W Li-ion battery: 1050 mA Operating time: approx. 3.5 hours at full power, longer when dimmed Dimensions (WxHxD): 39 x 0.8 x 27 cm (15.4 x 0.3 x 10.6 in.) Weight: 1010 g (35.6 oz.)