RGB White Laser Diode Module 520nm 450nm 638nm Red Green Blue Laser Drive Circuit 300mW TTL Light Combining

Specification:
Circuit control: step-down circuit, constant current 
suitable wavelength:445nm 450nm/520nm/635nm 638nm 660nm
Printing instructions: R - red light, G - green light, B - blue light 
Recommended power: red 150mW; green 250mW; blue 200mW 
Dimensions: 80*53(width * length), the height :19mm(including the board )
Input Voltage: 8.5-12VDC
output Voltage:2.5/4.5-6.5VDC
Fan voltage: 12VDC
Output Current:<1200mA
Adjustment method: with a potentiometer, the left-handed current decreases, and the right-handed current increases (adjust the current by the size of the resistance)
Wiring method: PCB/power box is marked with red positive black negative (TTL blue + white -)
Working mode: constant current power

Note:
1. Familiarize with the product parameters and specifications before use, especially the key parameters such as voltage, current and pin position;
2. Pay attention to electrostatic protection, such as wearing an electrostatic bracelet when testing;
3. Pay attention to overload. During the test, the starting voltage and current should be from low to high to the rated current and voltage, and the parameters should be monitored closely.
4. The laser diode and the drive circuit are sensitive optoelectronic components. Please operate carefully to avoid loss. Since the sales chain has no return or repair service from the factory, there is no return or repair service for terminal sales. Once sold, it will not be returned.Thank you for your understanding!