1. identify the type of lamp beads.
2. understand LED voltage and current parameters.
3. understand the positive and negative direction of LED.
4. understand the high temperature data of LED, usually about 220 degrees Celsius.
5. Changing lamp beads requires professional constant temperature heating table, which can adjust the temperature.
About how to distinguish the type of lamp beads? Voltage? Electric current?
1, the type of the lamp bead is not usually written on the lamp bar, it needs to pry open
the lens to see the lamp, the size of the lamp bead is its model.
2, the voltage and current of the lamp beads, novice generally can not see, which needs to be tested
with the test power supply, 3V lamp beads, test power after the load voltage is about 2.5V, 6V lamp beads,
test power after the load voltage is about 5.5V. Voltage multiplied by current is power.