Specification Brand : Generic BulletPoint : 20pcs DC 4.5V Laser Head Module Laser Dot Diode Red Plastic Gyro Module Best Price BulletPoint1 : Emitted Colour : Infrared. , Size: 5mm. , Lens Color : Water Clear. BulletPoint2 : Forward Voltage (V) : 1.2-1.4V. , Forward Current (mA): 100mA. , Wavelength (nm): 940nm. BulletPoint3 : It's brand new, good quality & high performance. ** PLS PAY ATTENTION the accurate size & voltage rate before placing order in order to avoid buying wrong thing. Free Shipping & the deliver time to USA is approx. 10-18 days after the shipment date. ExternallyAssignedProductIdentifier : 9113664350198 ExternallyAssignedProductIdentifier1 : 0769471394390 ExternallyAssignedProductIdentifier2 : 769471394390 ItemName : 20pcs DC 4.5V Laser Head Module Laser Dot Diode Red Plastic Gyro Module Best Price ItemPackageQuantity : 1 ItemTypeKeyword : diode-lasers Manufacturer : Generic Material : lead NumberOfItems : 1 PartNumber : USCF_HGVD_19458 ProductDescription : Description Lead Length: 7CM Head Maximum Diameter: 11.8MM Rotating Part Diameter: 8.2MM Device Part Length: 23MM Operating Voltage: 4.5V, 51Ohm Resistance In the ideal case (no dust, no fumes, no barrier), the laser transmission distance is infinite. The laser head in the case of high air quality, operating current to 20MA, the transmission distance can reach more than 1KM. In cloudy night, exposure to 500 meters away from objects, it is clearly visible. For a closer distance, even in the sun of the day, shone on the pavement, outside the building, it is also clearly visible. Application production of electronic pointer pens, electronic tuner, lights, remote control, instrumentation. Other Diode Module Link: