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How to buy
For how to order, delivery time, guarantees etc.
read our "how to's" We accept orders from any country !
All our Products are RoHs compliant !
Our group is Chinese Manufacturer which owns 3 factories and 4 workshops:
1. LED diodes
2. Cooling modules
4. LCD modules
6. Connectors + cables
Factories are located in Jiangsu and Zhejiang provinces in China.
LED Resistor Calculator
Single led - Leds in series - Leds in parallelVoltage drop is usually 1.9~2.1V for AlGaInP, 3.1~3.5 for InGaN and 1.2V for Infrared.
Current is usualy 20mA, for UFO LEDs current is: 30mA for InGaN and 50mA for AlGaInP.
Supply Voltage - depends what you have at disposal. Usuall is 6V or 12V source.