Blue, green LED welding with the same white LED, white LED to the general standard of welding, and so the basic requirements of the operation need to pay attention to the following:

1, production must wear anti-static gloves, anti-static wrist, electric iron must be grounded, no-touch white LED bare hands two feet lead. Because the anti-static white LED to 100V, while the work table in the humidity of 60% -90% of the human body static electricity will damage the LED crystal layer, the work of a period of time (say 10 hours) diode will be Failure (not light), when it will be a serious failure.

2, welding temperature of 260 ℃, 3 seconds. Temperature too high for too long will burn chips. In order to better protect the LED, LED gel with the PC board should be more than 2mm pitch, so that the welding heat in the pin in addition to the San.

3, LED's work for the current 20mA, the tiny fluctuations in voltage (for example, 0.1V) will rise to the current fluctuations (10% -15%). As a result, in circuit design should be based on the LED voltage drop different pair of current-limiting resistors to ensure that the LED is in the best work of the state. Too much current, LED will shorten the life span of current is too small, less than the required light intensity.

In general, when supply volume will be LED by color, that is, in the same package of products, LED light intensity, voltage, light colors are the same, and in the form specified by color.