RPi Relay Board for Raspberry Pi Power Relay Expansion Board Module 3-ch Relays for Raspberry Pi 3 B+/3 B/2 B/B+/A+ Loads up to 5A 250V AC or 5A 30V DC

The Raspberry Pi Relay Board gives your Pi the ability to control high voltage/high current devices, easily makes normal home appliances become intelligent.
Supports Raspberry Pi A+/B+/2B/3B/3B+
High quality relays, loads up to 5A 250V AC or 5A 30V DC
Photo coupling isolation, prevent interference from high voltage circuit.Onboard LEDs for indicating relays status
Relay control jumper, allows to control the relays by custom pins other than the default pins.Comes with development resources, including examples in wiringPi, WebioPi, shell, python, and bcm2835