Green net spotting, continuous output, like the stars in the sky, bring you a star world with dream and tales. Pen-like design, cute and portable Specifications: Dimension: Φ13.5*160mm Output wave length: 532 nm Output power: 1mW\5mw\10mW\20mW\30mW\40mW\50mW\100mW Work voltage: DC=3V(2XAAA battery) Work current: I<250mA Pre-heating time: 5 minutes Work temperature: +20o C~+o C Storing temperature: +10o C~+o C Cautions: 1, Make sure the + & - polarities are correct when insert the batteries 2, Do not mix new and old batteries 3, Do not mix alkaline or silver-oxide batteries 4, Keep out of children 5, Remove the batteries for long time idle 6, Warning: Avoid direct eyes exposure Packaging: 80 pcs per carton, measurement, 40X30.5X28.5cm, gross weight, 7.50kgs