Weight:54g Dimension:2.95in*1.77in*0.91in(7.5cm*4.5cm*2.3cm) Brand:Navo Model:N/A Color:Black+Blue Quantity:1 Piece Material:PCB Certification:QC Features: Relay module controlled by SONGLE. Maximum alternating voltage and current are respectively 250V and 10A. Maximum direct-current voltage and current are respectively 30V and 10A. Powerful driven by 8550 triode transistor. Working voltage is 5V. VCC pin 5V input. Power-on display in green light. Adapt to 51/AVR/ARM platform etc. Packing List: 1 x 4-Channel Relay Module<img src="http://112.74.112.28/down/products/427539/427539_000.jpg" noproxy>