Detailed Product Description Name: Dotting Laser Module Standard Dimension: 8?7mm Fixed focus, single, ellipse light shape, continuous working time over 5000hours. Specifications: Wavelength: 650nm Power: Class III A P<5mW Trigger Voltage: 2.3V Working Voltage: 3.2V Working Current: I<40mA Working Temperature: -10 C--+40 CStorage Temperature: -20 C--+60 CSize of Light Spot at 15m: <14?0mm Function: Industrial grade, can be used as laser light source of positioning instruments and equipments, laser distance finders, laser levels, laser line markers( laser line projectors), laser sightings, laser level bars and so on photoelectric products.