Features 1、100% brand new and high quality. 2、These are great laser modules for laser sensor projects. 3、These modules have 5V working voltage, 5mW power. 4、Small size and light weight, convenient to use. 5、There are total four pieces of modules in one set that you may use for many projects. Specification Features: 100% brand new and high quality. These are great laser modules for laser sensor projects. These modules have 5V working voltage, 5mW power. Small size and light weight, convenient to use. There are total four pieces of modules in one set that you may use for many projects. Specifications: Power: 5mW Laser Wavelength: 650nm Laser Color: Red Working Voltage: 5V Size: 1.5*2.8cm/0.59*1.1in Quantity: 4pcs Weight: 3g(approx.) Package Includes: 4 x Laser Modules Package List