Product Model: OKY3013-1
5V / 12V 4-Channel Relay Module (Red Board)
Product Description
1.Color:Red + Blue.
2.Power supply:12V.
3.Drive level:12V TTL (High level drive).
4.Application:for Ardu DIY projects.
5.Weight:64g.
6.Voltage:5V/12V at optional, please tell which one you need when make order.
7.Pack Size:10cm x 8cm x 6cm.