1. Product Overview
This portable LED work light adapter is designed to convert your Erbauer 18V/20V EXT Lithium-ion battery into a convenient, cordless light source. It features an E27 bulb socket, allowing for the installation of standard E27 LED bulbs, and an integrated on/off switch for easy operation. This product is ideal for various indoor applications where portable lighting is needed.


2. Safety Information
- Ensure the battery is fully charged before use for optimal performance.
- Do not expose the device to water or excessive moisture.
- Use only compatible Erbauer 18V/20V EXT Lithium-ion batteries.
- Do not attempt to disassemble or modify the adapter.
- Always turn off the light using the switch before removing the bulb or battery.
3. Setup
- Install the E27 Bulb: Carefully screw an E27 LED bulb (not included) into the lamp holder socket until it is secure. Ensure the bulb is rated for appropriate voltage (14.4V-21V compatible bulbs are suitable).
- Attach the Battery: Slide your compatible Erbauer 18V/20V EXT Lithium-ion battery (e.g., EBAT18-Li-5, EBAT18-Li-4, EBAT18-Li-2) onto the adapter until it clicks into place. Ensure a firm connection.


4. Operating Instructions
- Once the bulb and battery are securely attached, locate the ON/OFF switch on the side of the adapter.
- Flip the switch to the 'ON' position to illuminate the bulb.
- To turn off the light, flip the switch back to the 'OFF' position.
- When not in use, it is recommended to remove the battery from the adapter to prevent accidental discharge.


Video demonstrating the assembly and operation of the LED work light.
5. Maintenance
- Cleaning: Wipe the adapter with a dry, soft cloth. Do not use abrasive cleaners or solvents.
- Bulb Replacement: Ensure the adapter is turned off and the battery is removed before replacing the E27 bulb. Allow the bulb to cool down if it has been in use.
- Storage: Store the adapter in a dry place, away from direct sunlight and extreme temperatures. Remove the battery if storing for extended periods.
6. Troubleshooting
- Light does not turn on:
- Check if the battery is properly attached and charged.
- Ensure the E27 bulb is securely screwed into the socket and is not faulty.
- Verify the ON/OFF switch is in the 'ON' position.
- Light flickers:
- Check the battery charge level; a low battery can cause flickering.
- Ensure the bulb is fully screwed in and making good contact.
- Try a different E27 bulb to rule out a faulty bulb.
7. Specifications
| Feature | Specification |
|---|---|
| Item Type | LED Work Light Adapter |
| Lumen (typical bulb) | 500LM |
| Rated Power (typical bulb) | 5W |
| Color Temperature | 6000K (Cool White) |
| Switch | 1x control LED on/off |
| Material | 3D printing |
| Compatible Batteries | Erbauer 18V Lithium-ion Batteries (EBAT18-Li-5, EBAT18-Li-4, EBAT18-Li-2) |
| Compatible Lamp Voltage | 14.4V-21V |
| Package Length | 15 cm |
| Package Width | 10 cm |
| Package Height | 5 cm |
| Package Weight | 0.13 kg |
8. User Tips
- For maximum brightness and runtime, use a fully charged, high-capacity Erbauer 18V/20V EXT Lithium-ion battery.
- Consider using an LED bulb with a wide beam angle for general area lighting, or a narrower beam for more focused illumination.
- Always ensure the bulb is rated for the appropriate voltage range (14.4V-21V) to prevent damage to the bulb or adapter.
9. Warranty and Support
For any questions, technical assistance, or support regarding this product, please contact the seller directly through the platform where the purchase was made. Please provide your order details when contacting support.





