10 pieces 5V 650nm 6mm 5mW mini Laser Dot Diode Module Copper Head Red The laser emission principle and the particularity of the production process determines the characteristics of the laser with ordinary light: the three good (good color, good coherence, good direction) a high (high brightness). Mainly used for laser toys, a variety of level, ground instrument and so on Production of electronic pointer pen: When the teacher lectures, with laser projection point to ask students to observe and think. To pay attention to the safety of the laser battery to prevent the demolition of electric power pool caused by short-circuit burning or battery explosion. Specification: Output Power: 5mW Wavelength: 650nm Working Voltage: 5V Operating Current: less than 40 mALaser Shape: Dot housing: Copper Dimensions: 6x10.5mm Operating temperature: -36 Storage temperature: -36 Spot size: 15 Package Includes: 10 pieces Dot Doide Module Note: Pls allow an error of 1-3mm due to the difference of manual measurement. The laser should never point to the eyes of yourself or others at any time, even if the laser is in the off case. The laser can not illuminate any reflective surface or smooth surface, the laser reflectivity is excellent, in the reflective surface to the reflective surface will produce reflection, if just to the human eye, can cause harm. Laser is not a toy, can not give children, mental retardation, the characteristics of the laser do not understand the use of people in this case, easily lead to injury. Use special goggles when using lasers, which is especially important for invisible lasers. The laser can not be taken to the vehicle, the plane, and so on. Pay attention to the safety of the laser battery to prevent others from removing the battery caused by short-circuit combustion or battery explosion.