✔️Laser shape: Dot. Outer diameter: 6 mm. Wavelength: 650nm. Operating voltage: 5V. Total length: 9cm/3.54inch. Operating current: Must be less than 20Ma.
✔️Applications: homemade laser pointers, water level meter, ground meter, long range laser monitor remote light control, long range laser wireless communication. Compatible with Arduino, Raspberry Pi and other microcontrollers like.
✔️What You Get: 30pcs, High Quality, Bright Beams, Small Red Laser Diode Laser, welcome guide, our 6-month worry-free, and friendly customer service.