Operating Voltage: DC 4.5 V
Battery Type: 3 x 1.5 v / LR03 / AAA alkaline batteries
Wavelength Range: 390 ~ 500 nm
Intensity Range: 200 mW/cm² ~ 3999 mW/cm²
Diameter Range: 3 mm ~ 12 mm
Dimensions: L120 x W62 x H15 mm
Weight: 90 g (including 3 batteries)