DescriptionName:twinkling star green laser pointer Dimension:13.4x162.00mm Technical Parameter: Fixed focus, green dot facula and Transformable twinkling star continuous output and working time over 5000 hours Output Wavelength:532 nm Output Power:5mW ( 1mW,5mW,10mW,20mW,30mW,50mW,100mW, 200mW also for clients ) Working Voltage:DC=3.0V Trigger Voltage:DC=2.3V Working Current:I<280mA Working Temperature:20 - +35 Storage Temperature:-20 - +60 Appearance and Color: Rubber Black (according to the request of customer) Function: can be used as indicator, gift.