The inherent characteristics of LED determine that it is the most ideal light source to replace the traditional light source, and it has a wide range of uses. Small size LED is basically a small chip encapsulated in epoxy resin, so it is very small and very light. Low power consumption LED power consumption is very low, generally speaking, the working voltage of LED is 2-3.6V. The working current is 0.02-0.03A. That is to say: it consumes no more than 0.1W.
LED should choose high brightness, astigmatism should be more than 1200mcd, the angle should be 120 degrees, and concentrating type should be more than 20000mcd. The voltage is 3.0-3.6v and the current is 20mA. The feet of the general LED are very long.
Place the circuit board installation (ān zhuāng) side up, and place the LED polarity in the right direction. Note that the long foot is the positive pole, the short foot is the negative pole, and the round side is the positive pole.
After the LED is installed, the soldering surface of the circuit board can be soldered with the soldering side facing up. Soldering should use a 30W soldering iron and grounding wire. The soldering temperature should be controlled within 240 degrees and the time should not exceed 2 seconds.
LED should choose high brightness, astigmatism should be more than 1200mcd, the angle should be 120 degrees, and concentrating type should be more than 20000mcd. The voltage is 3.0-3.6v and the current is 20mA. The feet of the general LED are very long.
Place the circuit board installation (ān zhuāng) side up, and place the LED polarity in the right direction. Note that the long foot is the positive pole, the short foot is the negative pole, and the round side is the positive pole.
After the LED is installed, the soldering surface of the circuit board can be soldered with the soldering side facing up. Soldering should use a 30W soldering iron and grounding wire. The soldering temperature should be controlled within 240 degrees and the time should not exceed 2 seconds.
LED should choose high brightness, astigmatism should be more than 1200mcd, the angle should be 120 degrees, and concentrating type should be more than 20000mcd. The voltage is 3.0-3.6v and the current is 20mA. The feet of the general LED are very long. For the convenience of welding, use needle-nose pliers or diagonal pliers to pre-cut the feet and leave 3mm of pins.
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