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Product description
SPECIFICATIONS
Battery Included: no
Brand Name: NONE
Choice: yes
Department: Unisex
High-concerned chemical: None
Origin: Mainland China
Semi-finishedproduct: Yes
Theory: Countdown
Smart Timing · Automatic Power Off · Easy USB Control
Easily control the operating time of your USB-powered devices. Set the desired countdown time, and the timer will automatically cut off the power when the countdown ends. Suitable for aquariums, USB fans, LED lights, humidifiers and other 5V USB devices.
24H Adjustable Countdown
The timer supports countdown settings within 24 hours, making daily USB device control more convenient.
Time Range: Up to 24 Hours
Hour Adjustment Step: 1 Hour
Minute Adjustment Step: 5 Minutes
Automatic Power Off: Yes
Digital Display: Clear countdown status
USB Male/Female Interface: Easy plug-and-play connection
Clear Digital Display
The digital screen allows you to check the countdown progress at a glance.
Real-Time Countdown Display
Know the remaining operating time clearly and conveniently.
Easy Knob Adjustment
Simply rotate the control knob to adjust the countdown time.
After setting the required operating time, start the countdown. When the timer reaches zero, the connected USB device will automatically power off.
USB Male to Female Design
Designed with standard USB male and USB female connectors.
Connect the USB male plug to a 5V USB power source, then connect your USB-powered device to the female USB port.
No complicated installation is required.
Automatic Power-Off Control
No need to manually unplug your device after use.
The timer automatically cuts off power after the preset countdown is completed, making it convenient for devices that only need to operate for a limited period.
Wide Application
Suitable for a variety of 5V USB-powered devices, such as:
Aquarium Pump / Fish Tank Equipment / USB Fan / LED Light / Humidifier / USB Lamp / Small USB Devices
Ideal for home, office, aquarium and desktop applications.
Product Specifications
Product Name: USB Countdown Power-Off Timer Switch
Material: Plastic + Copper Wire
Color: Black
Interface: USB Male / USB Female
Voltage: 5V
Timer Range: Up to 24 Hours
Hour Step: 1 Hour
Minute Step: 5 Minutes
Package: OPP Bag
Package Size: 15 × 8 × 3 cm
Gross Weight: 47g
Product Size: Please refer to the product size image
How to Use
Step 1: Connect the USB male plug to a 5V USB power source.
Step 2: Connect your USB device to the USB female port.
Step 3: Rotate the knob to set the required countdown time.
Step 4: Start the countdown.
Step 5: The power will automatically turn off when the countdown ends.
Package Includes
1 × USB Countdown Power-Off Timer Switch
Note: This product is designed for compatible 5V USB-powered devices. Please check your device voltage before use.





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