Common anode red/warm white LED PCB Kit 0603 for ROCO E626 (cod.4-30012) Common anode red/warm white LED PCB Kit 0603 for ROCO E636 (Main board for ROCO E636 art.4-30104). No resistors included. If connected to the Main Board for Roco E636 by Almrose, it does not require current limiting resistors as they are already present on the main board. However, in the case of a 12V power supply, a 1000 Ohm resistor must be added in series on the negative (see product manual). (Pack of 2 pieces)