Specifications: Working voltage: 6-30v Trigger signal source: High level trigger (3.0V - 24V) signal ground and the system to improve the system's ability of resistance interference (also can be a common ground) Output capability: Can control the DC 30V 5A or less than AC 220v 5A equipment Quiescent current: 20mA Operating current: 50mA Service life: more than 100 thousand times Working temperature: -40-85? Product size: approx. 63*38*16mm/2.48*1.49*0.62''V Net weight: approx. 24g All settings are automatically saved. With optocoupler isolation, increasing anti-interference ability. Note: The output of the relay is a passive contact, without output charge just to control the on-off cable. Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding. Package included: 1 x Delay Relay Module Board