I have 12 V deck lights on the upper portion of my dock and I wanted to illuminate a red LED rope underneath to reflect down upon the water. I wanted them both to turn on and off at the same time, so your product was perfect for the job.

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Product details
Controlling a standard wall outlet device with your microcontroller shouldn't mean risking a dangerous encounter with live AC wiring. The IoT Power Relay is an easily controllable power unit that comes fully enclosed and allows you to safely switch heavy loads using an Arduino, Raspberry Pi, or any standard single-board computer. Serving as a modern alternative to the Power Switch Tail, this relay is the perfect choice when building Internet of Things projects and smart home automations with total peace of mind. High-Voltage Control for Your IoT Projects Since the IoT Power Relay has been designed specifically for maximum flexibility and safety, a single low-voltage input signal seamlessly switches four distinct power outlets: One Always On: Provides uninterrupted power to keep your main microcontroller or control system running continuously. One Normally On: Powers devices that should run by default and only turn off when triggered by your code. Two Normally Off: Perfect for triggering heavy loads like lights, fans, heaters, or pumps only when you explicitly command them to turn on. Engineered for Durability and Safety Under the hood, the IoT Power Relay is built to last and to protect your electronics. The SPDT control relay is rated for over 400,000 operations at 12A, and the internal circuitry features optical isolation, relay hysteresis, and de-bounce protection. To further safeguard your projects, a built-in large MOV clamps surges to reliably provide 90-140VAC power, while a 12A thermal safety circuit breaker prevents dangerous overloads. Complete with mounting tabs for easy installation, you can integrate this relay into any permanent workbench setup or field enclosure!
All reviews
Worked exactly as expected. Permanently installed in a project, have not had an issue in weeks of constant operation. Fast response, plenty of outlets. Only thing I would like on a future model is per-outlet relays for fine control.
This solved my problem. Once I plugged in the wires & turned on the power my remote studio speakers lit up. When the preamp goes off the trigger voltage drops and they switch off. No more forgetting to turn them off.
