Adafruit Non-Latching Mini Relay Featherwing

Part number: 2895
Description
Plugging straight on top of your Feather using convenient stacking header pins, FeatherWings let you build-in power control to your Feather development board.
Now, thanks to the non-latching mini relay FeatherWing, you can control power input to switch a host of devices such as lamps, fans and solenoids on and off. You can even control power for small appliances that run on up to 250 V ac (so long as the power usage is no greater than 60 W).