SMAKN&reg; 12V Active Low 2 Channel Relay Shield Module for Arduino UNO 2560 1280 ARM PIC AVR STM32 Raspberry Pi Supply voltage:DC 12V Current: &gt; 100mA Load: AC 250V 10A or DC 30V 10A Size: 50.5mm (L) * 38.5mm (W) * 18.5 (H) Weight: 31g