1. Introduction
This manual provides instructions for the safe and effective use of the Cecotec Mosquito Killer ByeFly 3000 Go. This device is a portable 3-in-1 unit functioning as a mosquito killer, a dual-sided lamp, and a flashlight. It features an 1800 mAh battery for extended portability and IPX4 water resistance.
Key Features:
- 3-in-1 Design: Functions as a mosquito killer, a lamp with light on both sides, and a flashlight at its base.
- Portable Power: Equipped with an 1800 mAh battery for extended operation without a power source.
- Water Resistance: IPX4 protection ensures resistance to splashing water.
- Effective Performance: 5 W power output for efficient operation.
- Suspension System: Includes a hook for convenient and secure placement.
2. Safety Information
Please read all safety instructions carefully before using the device. Failure to follow these instructions may result in electric shock, fire, or injury.
- Do not insert fingers or metal objects into the mosquito killer grid.
- Keep the device out of reach of children and pets.
- Do not use the device near flammable gases or liquids.
- Avoid direct contact with the internal high-voltage grid.
- Do not immerse the device in water. The IPX4 rating protects against splashes, not submersion.
- Only use the charging cable provided or a certified equivalent.
- If the device is damaged, do not attempt to repair it yourself. Contact qualified service personnel.
- Turn off and unplug the device before cleaning.
3. Product Components
Familiarize yourself with the main parts of your ByeFly 3000 Go device.

Figure 1: Overview of the Cecotec Mosquito Killer ByeFly 3000 Go, highlighting its multi-functional design with the mosquito killing grid and integrated lamp panels.
- Mosquito Killing Grid: Upper section with purple UV light to attract and eliminate insects.
- Control Button: Located on the main body for switching functions.
- Side Lamp Panels: Integrated lights on the main body for ambient illumination.
- Flashlight: Located at the bottom of the device.
- Suspension Hook: At the top for hanging the device.
- Charging Port: Typically located at the base, protected by a cover.
4. Setup
4.1 Initial Charging
- Before first use, fully charge the device.
- Locate the charging port, usually at the base, and open its protective cover.
- Connect the provided USB charging cable to the device and to a compatible USB power adapter (not included) or a computer USB port.
- The charging indicator light will illuminate. Once fully charged, the indicator may change color or turn off.
- Close the protective cover of the charging port to maintain IPX4 water resistance.
4.2 Placement
For optimal mosquito killing performance, place the device in a dark area, away from other light sources, and at a height of approximately 0.8 to 1.2 meters from the ground. The integrated suspension hook allows for versatile placement.

Figure 2: The device utilizing its suspension hook for elevated placement, ideal for mosquito attraction.
5. Operating Instructions
The device features a single control button to cycle through its various functions.
5.1 Mosquito Killer Function
- Press the control button once to activate the mosquito killer function. The purple UV light will turn on.
- The UV light attracts mosquitoes, which are then eliminated by the internal electric grid.
- For best results, operate the mosquito killer in a dark environment.

Figure 3: The mosquito killer function in operation, demonstrating the elimination of an insect.
5.2 Lamp Function
- From the mosquito killer mode, press the control button a second time to activate the side lamp panels.
- The device will provide ambient light from both sides.

Figure 4: The device operating in lamp mode, providing illumination from its side panels.
5.3 Flashlight Function
- From the lamp mode, press the control button a third time to activate the flashlight at the base of the device.
- The flashlight provides a focused beam of light for directional illumination.

Figure 5: The device being used as a flashlight, demonstrating its portable illumination capability.
5.4 Turning Off the Device
To turn off the device from any active mode, press the control button a fourth time. The device will power down.
6. Maintenance
6.1 Cleaning
- Ensure the device is turned off and unplugged before cleaning.
- Use a soft brush or cloth to gently remove dead insects from the mosquito killing grid. Do not use water or cleaning solutions directly on the grid.
- Wipe the exterior of the device with a damp cloth. Do not use abrasive cleaners or solvents.
- Ensure the charging port cover is securely closed after cleaning to maintain water resistance.

Figure 6: The device demonstrating its IPX4 water resistance, suitable for outdoor use with proper care.
6.2 Storage
When not in use for extended periods, store the device in a cool, dry place, away from direct sunlight and extreme temperatures. Ensure the battery is partially charged (around 50%) before storage to prolong its lifespan.
7. Troubleshooting
If you encounter issues with your ByeFly 3000 Go, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on. | Low battery. | Charge the device fully. |
| Faulty charging cable or adapter. | Try a different USB cable and power adapter. | |
| Mosquito killer function is ineffective. | Device placed in a brightly lit area. | Move the device to a darker area, away from competing light sources. |
| Mosquito population is very high. | Allow more time for the device to operate, or consider using multiple units for larger areas. | |
| Lamp or flashlight not working. | Low battery. | Charge the device fully. |
| Incorrect mode selected. | Press the control button to cycle through modes until the desired light function is active. |
8. Specifications
Technical details for the Cecotec Mosquito Killer ByeFly 3000 Go.
| Feature | Detail |
|---|---|
| Brand | Cecotec |
| Model Number | 01788 |
| Design | 3-in-1 (Mosquito Killer, Lamp, Flashlight) |
| Battery Capacity | 1800 mAh |
| Water Resistance | IPX4 |
| Power Output | 5 W |
| Material | Plastic |
| Color | Black |
| Weight | 340 g |
| Power Source | Battery Powered |
| Target Species | Mosquito |
9. Warranty and Support
9.1 Warranty Information
This product is covered by a standard manufacturer's warranty against defects in materials and workmanship. The warranty period typically begins from the date of purchase. Please retain your proof of purchase for warranty claims.
The warranty does not cover damage caused by misuse, accident, unauthorized modification, or failure to follow the instructions in this manual.
9.2 Customer Support
For technical assistance, warranty claims, or further inquiries, please contact Cecotec customer support through their official website or the retailer where the product was purchased.
Website: www.cecotec.com





