1. Important Safety Information
Please read this user manual carefully before the first use of the device.
- Always ensure the device is unplugged before cleaning or maintenance.
- Do not touch the internal high-voltage grid with fingers or metal objects.
- Keep out of reach of children and pets.
- Do not use in areas where flammable vapors or explosive dust are present.
- Do not immerse the device in water or other liquids.
- For indoor and covered outdoor use only (e.g., terrace). Avoid direct exposure to rain.
2. Product Overview
The LEHMANN Electric Mosquito Killer Lamp (Model LHOIL-4040RC) is designed to effectively attract and eliminate flying insects such as mosquitoes, flies, and moths using UV light and a high-voltage grid. This device offers a chemical-free, silent, and efficient solution for insect control in areas up to 400 m².
2.1 Key Features
- Effective UV Insect Trap: Utilizes two blue UV LED tubes with a lifespan of up to 12,000 hours to attract insects.
- Large Coverage: Powerful 40W unit with a 2000-2300V high-voltage grid, suitable for areas up to 400 m².
- Silent and Chemical-Free: Operates quietly without odors or harmful chemicals, ensuring a safe environment.
- Remote Control: Convenient remote operation for easy power control.
- Flexible Installation: Can be hung using the included metal chain or placed freestanding on a flat surface.
- Easy Maintenance: Features a removable collection tray for simple cleaning.
3. Setup Instructions
Follow these steps to set up your LEHMANN Electric Mosquito Killer Lamp:
- Unpack the Device: Carefully remove the insect killer lamp and all accessories from the packaging.
- Choose Placement: Decide whether to hang the device or place it freestanding.
- For Hanging: Attach the included metal chain to the designated hooks on top of the device. Hang the device in a central location within the desired coverage area, ensuring it is out of reach of children and pets.
- For Freestanding: Place the device on a stable, flat surface. Ensure there is adequate space around it for air circulation and to prevent accidental contact.
- Power Connection: Plug the power cord into a standard electrical outlet. Ensure the ON/OFF switch on the device is in the OFF position before plugging it in.


4. Operating Instructions
Operating your insect killer lamp is straightforward:
- Power On: Flip the ON/OFF switch on the device to the ON position. The UV lights will illuminate.
- Using the Remote Control: The device can be controlled remotely. Ensure the main ON/OFF switch on the unit is in the ON position for the remote control to function.
- Press the "ON" button on the remote to activate the lamp.
- Press the "OFF" button on the remote to deactivate the lamp.
- Effective Placement: For optimal results, place the lamp in a dark area away from competing light sources. It is most effective when used during dusk and night hours.



5. Maintenance
Regular maintenance ensures optimal performance and longevity of your insect killer lamp.
- Cleaning the Collection Tray: The device is equipped with a removable tray at the bottom to collect dead insects.
- Ensure the device is unplugged from the power outlet before cleaning.
- Gently pull out the collection tray from the bottom of the unit.
- Empty the contents of the tray into a waste bin.
- Wipe the tray clean with a damp cloth. Do not use harsh chemicals.
- Slide the clean tray back into its position until it clicks securely.
- Cleaning the Grid: If insects accumulate on the high-voltage grid, use a non-metallic brush (e.g., a soft paintbrush) to gently remove them. Ensure the device is unplugged and completely discharged before attempting to clean the grid.
- Replacing UV Tubes: The UV LED tubes have a lifespan of up to 12,000 hours. If the light output diminishes or the tubes stop working, they may need replacement. Refer to the manufacturer's guidelines or contact customer support for replacement instructions and compatible tubes.

6. Troubleshooting
If your LEHMANN Electric Mosquito Killer Lamp is not functioning as expected, please refer to the following common issues and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on. | No power supply. ON/OFF switch is off. Remote control battery is dead. | Check if the power cord is securely plugged into a working outlet. Ensure the main ON/OFF switch on the device is in the ON position. Replace the remote control battery (CR2025). |
| Insects are not being eliminated. | UV tubes are old or damaged. Device is placed in a brightly lit area. High-voltage grid is covered with dead insects. | Consider replacing the UV tubes if they have exceeded their lifespan or appear dim. Relocate the device to a darker area, away from competing light sources. Clean the high-voltage grid as described in the Maintenance section. |
| Remote control is not working. | Main ON/OFF switch is off. Remote control battery is dead. Obstruction between remote and device. | Ensure the main ON/OFF switch on the device is in the ON position. Replace the remote control battery (CR2025). Ensure a clear line of sight between the remote and the device. |
If the problem persists after trying these solutions, please contact LEHMANN customer support.
7. Technical Specifications
Detailed specifications for the LEHMANN Electric Mosquito Killer Lamp, Model LHOIL-4040RC:
| Feature | Detail |
|---|---|
| Brand | LEHMANN |
| Model Number | LHOIL-4040RC |
| Color | Black |
| Material | Acrylonitrile Butadiene Styrene (ABS), Metal |
| Product Dimensions (L x W x H) | 64 cm x 7 cm x 25 cm |
| Item Weight | 1.8 Kilograms |
| Power Source | AC |
| Power Consumption | 40 Watts |
| High Voltage Grid | 2000-2300 Volts |
| Maximum Coverage Area | 400 Square Meters |
| UV Tube Lifespan | Up to 12,000 hours |
| Recommended Uses | Indoor, bedroom, living room, kitchen, office, terrace (covered outdoor) |
| Country of Origin | China |

8. Warranty and Customer Support
LEHMANN provides a warranty for this product to ensure your satisfaction and peace of mind.
8.1 Warranty Information
- Professional Users: 1-year warranty from the date of purchase.
- Private Individuals: 2-year warranty from the date of purchase.
This warranty covers manufacturing defects and material faults under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or normal wear and tear.
8.2 Customer Support
For any questions, technical assistance, or warranty claims, please contact LEHMANN customer support through the retailer where you purchased the product or visit the official LEHMANN website for contact details.
Please have your model number (LHOIL-4040RC) and proof of purchase ready when contacting support.