433MHz Wireless RF Relay Remote Switch – DC 3.6V to 24V 1CH

433MHz 1-Channel Mini Wireless RF Relay Remote Control Switch

Take control of your lighting, LED strips, and low-voltage devices without the mess of wires. This compact 433MHz single-channel (1CH) wireless RF relay module supports a wide operating voltage range — DC 3.6V, 5V, 9V, 12V, and 24V — making it one of the most versatile remote-control relay switches available for DIY electronics and home automation projects.

Whether you want to wirelessly toggle an LED lamp string, a Christmas tree light string, a light control switch, or any other low-voltage load, this mini relay module gives you the freedom to do it from a distance — no direct wiring to the device required at the point of control.

Key Features

• 433MHz RF frequency — reliable, long-range wireless signal transmission
• Wide voltage compatibility: DC 3.6V / 5V / 9V / 12V / 24V — works with most common low-voltage power supplies
• 1-Channel (1CH) relay output — cleanly controls one independent circuit or device
• Compact micro receiver module — fits neatly into enclosures, project boxes, or behind panels
• Includes transmitter (remote) — ready to pair and use straight out of the box
• Wireless operation — cord-free setup for a clean, clutter-free installation
• Ideal for DIY projects: LED lighting control, light switches, home automation, craft installations, and more
• Easy to use: no complex programming required for basic on/off switching

Typical Applications

• Wireless LED lamp string and strip light control
• Christmas tree or decorative light string switching
• DIY home automation relay switching
• Remote light control switch replacement
• Low-voltage device automation in maker and hobbyist projects

Specifications

• Frequency: 433MHz
• Operating Voltage: DC 3.6V / 5V / 9V / 12V / 24V
• Channels: 1CH (single channel)
• Module Type: Micro Receiver + RF Transmitter Remote
• Control Mode: Wireless RF

For guidance on safe wiring practices for low-voltage electronics projects, visit the U.S. Consumer Product Safety Commission (CPSC) for helpful electrical safety information.

Frequently Asked Questions

Q: What devices can I control with this 433MHz wireless RF relay switch?

A: This 433MHz 1-channel mini relay module can wirelessly control any compatible low-voltage device within its supported voltage range (DC 3.6V–24V). Common uses include LED lamp strings, decorative light strings (such as Christmas tree lights), DIY light control switches, low-voltage motors, and other maker or home automation loads.

Q: What voltage supply do I need for the 433MHz RF relay receiver module?

A: The receiver module supports a wide input voltage range: DC 3.6V, 5V, 9V, 12V, and 24V. Simply match the supply voltage to your project's power source — making it compatible with the most common hobbyist and DIY power supplies without the need for additional voltage regulation.

Q: Is this relay module difficult to set up for a DIY project?

A: No — this module is designed to be beginner-friendly for DIY and maker projects. The transmitter (remote) and micro receiver are pre-paired from the factory for basic on/off switching, so you can get started right out of the box. Connect your power supply and load to the relay terminals, and you're ready to control your device wirelessly.

Q: What is the wireless transmission range of the 433MHz RF remote?

A: The 433MHz frequency is well-known for its solid long-range performance compared to higher-frequency alternatives, making it a popular choice in DIY home automation and remote switching applications. Actual range will vary depending on the environment and any obstructions between the transmitter and receiver.