Usage Tips:It is convenient to replace the old parts of the refrigerator. All sets come with a white carton to the outer packaging for protection.Compatible models: suitable for most on the market that use 1 Pin QP2 4.7 ohm resistors. The refrigerator overload protector can prevent the compressor in the refrigerator from overheating. I am glad to change the part numbers, such as AP4439459, 1357963, AH3529540, EA3529595, PS325.PTC relay: universal relay, suitable for various of mini refrigerators and coolers, saving time and effort, this product is only compatible with QP2-4.7 single-ended relays.Easy to install and replace and wide application: Easy to install and replace directly, this will work and cool air to your refrigerator. Quick repair of mini refrigerators, compact refrigerators, beverage and wine/beer coolers, box freezers, deep freezers, wine/beer refrigerators, etc.materials: QP2-4.7 starting relay is made of plastic, which is and rust-proof. Stable characteristics and high reliability. Suitable for long-term use.Material:plasticcolour:BlackPackage Contents:2 x 2 x 1/2 protectorOnly the above package content, other are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.