24H USB Countdown Timer Switch – Auto Shutdown for Home
24H USB Countdown Timer Switch – Auto Shutdown for Home
Take control of your USB-powered devices with this 24-Hour Digital Countdown Timer USB Switch. Set a precise shutdown schedule — down to 5-minute increments — and let the timer automatically cut power when your time is up. Perfect for home offices, bedrooms, study rooms, and anywhere you want smart, hands-free power management.
Made in Mainland China.
Key Features
- 24-Hour Adjustable Countdown: Set any combination of hours (1H increments) and minutes (5-min increments) up to 24 hours total.
- Intuitive Digital Display: A clear LED screen shows your countdown in real time so you always know exactly how much time remains.
- Simple Knob Control: Press the knob once to toggle between hours and minutes; rotate to adjust the value — no complicated menus.
- Auto Power-Off: Press and hold the knob for 3 seconds to manually power off at any time.
- Plug & Play USB Interface: USB male-to-female pass-through design means no installation — just plug your device in and set your timer.
- 5V Low-Voltage Safe Operation: Designed for standard USB 5V devices, keeping your setup safe and energy-efficient.
- Portable & Compact: Lightweight plastic body fits neatly on any desk, nightstand, or workspace.
Specifications
- Interface: USB Male / Female (pass-through)
- Voltage: 5V DC
- Max Timer Range: 24 Hours
- Hour Increment: 1 Hour
- Minute Increment: 5 Minutes
- Material: Plastic
- Battery Required: No
- Package Contents: 1 or 2 pcs (as selected)
How to Use
- Plug the timer between your USB power source and your USB device.
- Press the knob once to select Hours mode; rotate to set desired hours.
- Press the knob again to switch to Minutes mode; rotate to set desired minutes.
- Wait 5 seconds — the ":" on the display will begin flashing, indicating the countdown has started.
- The timer will automatically cut power to your device when the countdown reaches zero.
Great For
- Auto-shutting off phone/tablet chargers after a set charge time
- Controlling desk fans, LED strips, or USB lamps on a schedule
- Limiting screen or device usage for study or sleep routines
- Office hotdesks and shared workspaces requiring timed device control
Looking for more handy gadgets? Check out our Clip-On Car Fan with LED Display & USB/Type-C Power or explore our Electromagnetic Induction Tester for Circuit Fault Detection for more smart electronics solutions.
Learn more: OSHA guidance on hand and power tools
Frequently Asked Questions
Q: What types of USB devices can I use with this digital countdown timer switch?
A: This USB countdown timer switch works with any standard 5V USB-powered device, including phone chargers, USB fans, LED desk lamps, USB hubs, and similar low-voltage accessories. It is not designed for high-current or non-USB devices.
Q: How do I start the countdown timer after setting the time?
A: After adjusting your desired hours and minutes using the knob, simply leave the timer alone for 5 seconds. The colon (":") on the digital display will begin flashing to confirm the countdown has started automatically.
Q: Can I stop the timer early without waiting for the countdown to finish?
A: Yes. Press and hold the knob for 3 seconds at any point during the countdown to manually power off the connected device immediately.
Q: Does this USB timer switch require any batteries or external power?
A: No batteries are required. The timer draws its operating power directly from the USB connection, making it completely plug-and-play with no setup or charging needed.