Features: Low drive voltage and current No electric spark,no noise and no contact High reliability, high efficiency and long lifespan Fine electro magnetic interference, high sensitivity and fast switching speed Especially suitable for corrosion, moisture, dust resistant and other harsh environments Specification: Operating Voltage:5~60V DC Model:SSR-100 DD Working Indicator:LED Starting Current:less than equal 5Ma Control Type:DC-DC Control Current:Less than 25Ma Off-state Voltage:less than equal 1.5V DC Mounting Method:Bolts Fixed Control Voltage:3-32V DC Cooling Condition:10-30A With Radiator; 40-300A Add The Fan Strong Cold Current:100A Inductive Load: greater than equal 5-7 Times Resistive Load: greater than equal 2-3 Times Widely used in many automatic control systems Size:6.3x4.5x2.3cm/2.48x1.77x0.91inch Note: Please allow 1-3mm error due to manual measurement.pls make sure you do not mind before you bid. Due to the difference between different monitors,the picture may not reflect the actual color of the item.Thank you! Package includes: 1 x Solid State Relay