electronic components: This optical laser-lens is made of electronic components, reliable and long life. Excellent replacement: An excellent optical laser-lens replacement for worn or damaged lenses. Stable performance: Stable performance while running, the pickup can read the disc quickly. Excellent performance: Simple and compact structure that brings the excellent operating performance of the radio audio system. Easy installation: Easy to install, convenient, easy to use and easy to operate. Specifications: Model: KSS-212A Band Range: Visible Light Operation Mode: Continuous Incentive Method: ElectricExcitation Active substance: Free electron Optical path: Internal optical path Output form: Power supply type mission signal: OC Gate Type Speed: Low speed Channel: Single channel OutputWavelength: 650 (nm) Colour: Black material: plastic Package Contents: 1 * laser-head Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.