Feature: 1. EASY TO INSTALL: Solid state relay adopt a standard 35MM rail installation method, with a rail installation buckle at the bottom, making disassembly and installation faster and more secure 2. WITH HEAT SINK: Solid state relay feature a thickened heat sink design made of aluminum material, which instantly absorb and dissipate the heat generated by the module during operating 3. LONG LASTING: Heat sink can reduce long term thermal fatigue of DC to DC solid state relay modules and extend equipment lifespan, you can use with confidence 4. SENSITIVE AND SILENT: Single phase SSR has the advantages of erosion resistance, low input power, high sensitivity, good electromagnetic compatibility, low noise, and operating frequency 5. STABLE AND RELIABLE: The rail solid state relay use excellent chips with LED indicator lights for more stable operating and strong interference resistant capabilities Specification: Item Type: Solid State Relay Input Voltage: 3-32VDC Output Voltage: 5-220VDC Load Current: 25A Control Method: DC to DC Insulation Resistance: 1000M On State Leakage Current: ≤2mA On Off Time: ≤10ms On State Voltage Drop: ≤1.5V Operating Temperature: -30℃~70℃. Package List: 1 x Solid State Relay