For Efficient Compressor Control: TheRelay ensures smooth operation of refrigeration or HVAC systems. it provides reliable control for compressor startups and operation in freezers, coolers, and HVAC systems, enhancing system efficiency and reliability. Broad Compatibility with Refrigeration and HVAC Models: This relay is compatible with commercial freezer and cooler models, making it ideal for food service equipment, convenience store refrigeration units, and other systems requiring a potential relay. Its versatility ensures wide applicability. , Long-Lasting Construction for Commercial Use: Manufactured with premium materials, the Relay withstands high temperatures and continuous operation. Its robust construction ensures durability and long-term performance, even in heavy-duty commercial applications. Trusted Quality and Customer Support: Manufactured to high-quality standards, the Relay ensures long-lasting performance and reliability in refrigeration or HVAC systems. Colour:White Material:Silver dot copper parts Package Contents: 4 x DC solid state relay Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.