How to Use the Yocan UNI 4.0?

The Yocan UNI 4.0 is a portable cartridge vaporizer designed for users who want precise control, versatile compatibility, and a sleek experience. Equipped with a 650mAh rechargeable battery, adjustable voltage range (1.8V–4.2V), a 1.26inch TFT display, and a unique height adjustment feature, it offers an easy way to enjoy your favorite cartridges while giving you more control over every session.
Whether you’re using the UNI 4.0 for the first time or looking to improve your vaping experience, learning the proper setup and operation can make all the difference. This guide covers the device’s main features, how to use it correctly, and a few simple tips to help keep it performing at its best.

Yocan UNI 4.0 Features and Benefits

• Powerful 650mAh Battery: The builtin rechargeable battery delivers reliable power for daily sessions and supports convenient USB TypeC charging.
• Adjustable Voltage: Customize your sessions with a voltage range of 1.8V to 4.2V. Lower settings provide smoother flavor, while higher settings produce warmer vapor and thicker clouds.
• Universal Compatibility: The adjustable diameter dial (8–14mm) and height adjustment (up to 42mm) allow you to fit almost any 510thread cartridge securely.
• 1.26Inch TFT Display: The clear screen displays your current voltage, puff counter, and battery life, making adjustments quick and easy.
• 10Second Preheat Mode: Activate the preheat function with two quick clicks of the power button to warm thicker oils before vaping.
• Compact and UserFriendly Design: With simple onebutton controls and a portable design, the UNI 4.0 is easy to use at home or while traveling.

How to Use the Yocan UNI 4.0

1. Install Cartridge: Use the included magnetic 510 thread adapters to connect the cartridge.
2. Adjust Height: Press the height adjustment button and slide the cartridge holder up or down for a perfect fit (Adjust Height: >42mm).
3. Adjust Diameter: Rotate the adjustment dial until the cartridge is securely locked (Diameter Range: 8–14mm).
4. Power On the Device: Quickly press the power button five times within two seconds to turn the device on or off. The TFT display will light up once the device is ready to use.
5. Adjust the Voltage: Click the “+” or “” buttons to adjust from 1.8V to 4.2V in 0.1V increments. Hold the “+” or “” button for rapid voltage adjustment.
6. Activate Preheat Mode: Quickly click the power button twice to start the 10second preheat function (runs at 1.8V with a countdown displayed). Doubleclick the power button to exit preheat mode.
7. Start Vaping: Press and hold the power button while inhaling through the mouthpiece. The maximum vaping time is 15 seconds per session.
8. Recharge When Needed: Recharge the battery via TypeC port when the power is low. Disconnect the charger once charging is complete (full charge takes about 1 hour) to help maintain battery performance.

Tips for Using the Yocan UNI 4.0

A few simple habits can help you get the most out of your UNI 4.0. Start at a lower voltage before increasing the temperature to find your preferred balance of flavor and vapor. Use the preheat function when vaping thicker oils for more even heating. Keep the magnetic adapters and threaded connection clean to prevent residue buildup. Always use a 5V/1A charger and avoid fast charging. Turn the device off after each session to help preserve battery life and prevent accidental activation.

How to Maintain the Yocan UNI 4.0

Regular cleaning helps maintain flavor, improve performance, and extend the lifespan of your device. After each session, allow the UNI 4.0 to cool completely before cleaning. Remove any leftover oil from the connection points and gently wipe away residue with a cotton swab. Clean the magnetic adapters regularly, and keep the threaded connection free from dirt or oil to ensure a stable connection.

When the device is not in use, store it in a cool, dry place away from direct sunlight and excessive heat. With proper care and regular maintenance, your Yocan UNI 4.0 will continue delivering smooth, flavorful vapor session after session.

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