Click Down Plastic Housing 4.7 Ohm 1 Pin Refrigerator PTC Starter Relay Black 100% Brand new. Resistance: 4.7Ohm. Replacement Start Relay for Compressor. Total Size: 3.2 x 2.1 x 2.9cm / 1.3'' x 0.8'' x 1.1 (L*W*H). QP2-4R7 is a pretty generic starter relay used on various brands of mini fridges and coolers.