Power / Power Switches

Add a power switch to any project simply by plugging this between the power supply. This is the most useful thing you never knew you needed! You'll want to pick up a bunch for your electronic projects. Comes with a 5.5/2.1mm barrel jack on one end an a plug on the other. In between is an in-line switch that is rated for 125V and 2Amps (its normally used for lamps, we...

The Adafruit Push-button Power Switch is a tidy little design that lets you control a DC power source using an everyday tactile button. The breakout uses a latching analog circuit that is triggered by a push of the button. Press once to turn on, then press again to turn off. The circuit uses a 3A P-FET to connect and disconnect the IN pin to the OUT pin. Works great...

This switched JST connector is the best way to quickly prototype with our LiPoly batteries. We paired a genuine JST connector with a slide switch that can do up to 600mA. Both are soldered onto a breadboard-friendly breakout. There's two ground pins, one 'switched' power pin, and one pin that is always on. This is compatible with the "JST PH 2-pin" connectors we use...

Add a power switch to any USB-powered project simply by plugging this between the USB power port and the USB cable. This is the most useful thing you never knew you needed! You'll want to pick up a bunch for your electronic projects. Comes with a USB A socket on one end and a USB A plug on the other. In between is an in-line switch that is rated for 2 Amps. The data...

ON...off...ON...off...ON...off...ON...off...WE CAN'T STOP CLICKING THIS ON-OFF SWITCH! It has such a satisfying click and it works so well. Plus, it's just about perfect for charging your Raspberry Pi - either Model B, A+, B+, or Pi 2. Just hook up the standard USB end to a 5V 1A USB port power supply or 5V 2A USB port power supply and the Micro B end to a Raspberry...

Your cell phone charges off of USB, but can you really trust that charging station at the airport? Now you can control when to allow data in or out of your device with this little USB extension cable. You can plug it onto the end of any USB data/sync cable you have: mini-USB, micro-USB, Apple Lightning, or any other proprietary type. Voila! Your cable's data lines...

Tough Relay combines the features of a durable power relay, AC current monitor, circuit breaker, energy logger, power meter, and an event scheduler all in a compact DIN package. It can be used stand-alone or connected to a microprocessor via serial I/O. This DIN rail-mountable power management system is stuffed full of functionality - from the same folks who brought...

Say goodbye to hazardous high voltage wiring and create the Internet of Things with safe, reliable power control. The IoT Power Relay from Digital Loggers is custom designed to fit your every need when developing projects with Raspberry Pi, Arduino, Adafruit Feather, or any other microcontroller board! This beefy relay power module is well designed and is great when...

Squeeze once to turn on, squeeze again to turn off! This clicky switch makes a great power switch or mode toggler. We like this switch because it's easy to embed in a seam for easily powering up/off wearable and fabric projects. Can handle up to 14V and 2 Amps! This is a really satisfying switch. As of May 20th, the dimensions of this switch are: Length of wires:...

The PST has been discontinued. Please check out the IoT Power Relay for an equivalent alternative. The IoT Power Relay has more outlets but otherwise is functionally the same, and at a similar price! The Power Switch Tail II is a smart alternative to slicing apart power cords to wire up your own relays. Its a compact 120V 3-pronged extension cord, with a relay board...

This is Zsmart's patent pending electrical extension cord with manual and Bluetooth® wireless technology control. The Bluetooth wireless range of 30 feet or more, depending on environment. Does not require line of sight. This is an inexpensive way to control on/off power via Bluetooth from a variety of devices. We like using these to turn on and off hard-to-reach...

Your cell phone charges off of USB, but can you really trust that charging station at the airport? Now you can control when to allow data in or out of your device with this little USB extension cable. It can be used with any device that has a micro USB port, which is like just about anything except for Apple devices. Voila! Your cable's data lines can now be switched...

"HURRY, FRANK, THERE'S TOO MUCH POWER! We'll have to cut the circuit before this reactor goes up in smoke!" This simple but effective product is a solution to all your accidental-tourist-stuck-in-a-nuclear-power-plant-that-just-happens-to-be-right-above-a-now-active-volcano problems! Or just something without an off-switch. Say you have a nice, elaborate setup for...

We really dig the retro-futuristic look of this Chunky Power Switch. Reason one, it looks like it belongs on the USCSS Nostromo from Alien. Reason two, it's a great switch! You may have seen similar switches for machinery and robotics. It has a hefty metal box, two well labeled buttons, and a hole for a power cord to go through. A thumbscrew allows fast access to the...