6V-90V 15A DC Motor Pump Speed Controller of No Pole Speed Regulating Switch Science Fiction and the triangle side is

and the triangle side is for pushing the dead skins out and cleaning nails

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ITEM NAME:14 Pieces Dustproof Protector for PC Plug Port

With imported 24-pin male (20 + 4) / 24-pin female x 3 connector

send and receive light

6V-90V 15A DC Motor Pump Speed Controller of No Pole Speed Regulating Switch Science Fiction and the triangle side isITEM NAME: 6V 90V 15A DC Motor Pump Speed Controller of No Pole Speed Regulating Switch img *{margin: 0; padding: 0;. Adjust the switch. Connect it to the motor, the motor line can be positive or negative, when the running direction is not consistent with the expectative one, you can adjust the sequence of lines or switch position to change the direction.