Seeed Studios IRL104A2B Laser Module Emitter, Red Dot Adjustable Lens, 5 mW
Output power: min 2.5Mw, typical 3.0Mw, max 5.0Mw, working current: min 10MA, typical 20MA, max 25MA, working voltage: min 2.3Vdc, typical 4.5Vdc, max 8.0Vdc, wavelength: 650nm and working temperature: min -15°c, typical 25°c, max 35°c.