Accessories and Parts -LED Lamp Highlights Generic Brand LED Lamp Description: RC Car LED Lamp: Suit for RC Cars Traxxas Hsp Redcat Rc4wd Axial scx10 D90 Hpi and RC Car LED Lamp Remote Control Circuit Board . Part: LED light set and LED lamp remote control Circuit board 4pcs LED lamp: 2x red light + 2x white light. Voltage: 3V-7V. Blue led diameter 5mm. The diameter of the metal cup 8 mm. For Vehicle Type: RC Car RC Circuit Board: Item No.: AX-004 The use of voltage: 4.8~6V Method of use: connecting the servo connector to the third channel of the receiver (CH3 ), switch the CH3 switch of the controller quickly twice and the flashing mode will change Size Chart: Light wire length: 70cm / 27.55in RC circuit board length: 25cm / 9.8in Package includes : 2 x White LED (diameter 5mm / 0.20inch) 2 x Red LED (diameter 5mm / 0.20inch) 1 x LED lamp remote control circuit board Note: The size for manual measurement, it may be 0-1cm error, belongs to the normal phenomenon. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, thank you!