300 LED Assortment 200 x 3mm and 100 x 5mm – 5 Colors – Green Red Yellow White Blue
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Ultimate LED Assortment includes 3mm LEDs and 5mm LEDs in 5 different Colors.
40 x LED 3mm RED
40 x LED 3mm GREEN
40 x LED 3mm YELLOW
40 x LED 3mm BLUE
40 x LED 3mm WHITE
20 x LED 5mm RED
20 x LED 5mm GREEN
20 x LED 5mm YELLOW
20 x LED 5mm BLUE
20 x LED 5mm WHITE
Max. current (continuous) is 20mA, resulting in about 2-3V forward voltage, depending on the colour. LEDs are operated at constant/limited current and always require a series resistor.
The value of the resistor is easy to calculate following Ohm’s law: R = U / I
For example, a red LED with 10mA forward current at 2.2V, on a 12V power supply: U = 12-2.2 = 9.8V I = 0.01A R = 980 Ohm (1K)
The resistor will dissipate about 100mW (9.8V * 10mA); therefore, a 1/8W type would be sufficient in this example.
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Precision Tool Set for Electronic and Phone Repair0 out of 5
120 LED 3mm, 20 each of green red orange yellow white blue0 out of 5
120 LED 5mm, 20 each of green red orange yellow white blue0 out of 5