DFRobot Light Chaser Manual - Page 6

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4-Soldering Light
Chaser Kit V1
on
Switch
The switch is for power ON and OFF.
2. Solder the switch
After soldering, cut off the
remaining length of the wire.
off
4-Soldering Light
Chaser Kit V1
Transistor
The transistor is a powerful component. Notice the silkscreen (white
print on the board) resembles a half circle. Make sure that place the
transistors in the holes on the basis of the silkscreen. The round side
on the board should match the round side of the transistor.
3. Solder the transistors
After soldering, cut off the
remaining length of the wire.