650nm 5mw Adjusted Red Lasers Diode Dot Line Cross Laser Module Heatsink & Driver In Output Power: 5mw , Wavelength: 650nm Working Voltage: 2.5V-3.7V DC , Operating Current: &lt;50mA Laser Shape: Dot/Line/Cross , Dimensions:12 x 35mm It is a 650nm 5mw focusable laser module with three caps:Dot line and cross If you want to prolong the working time of this module, please add heatsink to this module.Please keep the lens clean.