User Manual for Solight 1L75B Wireless Doorbell
Quick guide for the Solight 1L75B wireless doorbell. Learn how to pair transmitters, replace batteries, adjust volume, and troubleshoot connection issues.
Quick answers from the manual
Quick answer
- The Solight 1L75B is a wireless doorbell with a 180m range. To pair, insert batteries into the receiver, wait for the 'Ding Dong' sound, and press the transmitter button within 120 seconds. p. 1
Key actions
- Pairing the transmitter p. 1
- Replacing transmitter battery p. 2
First start
- Insert batteries into the receiver to enter pairing mode automatically. p. 1
Problems and fixes
Check distance and signal interference from metal objects or reinforced concrete.
p. 2Maintenance and reset
- To delete paired buttons, press and hold the melody selection button (2) for approx. 20 seconds until you hear the 'Ding Dong' sound. p. 2
Technical specifications
| Parameter | Value | Meaning | Pages |
|---|---|---|---|
| Range | 180m | In open space | p. 1 |
| Frequency | 433.92 MHz | Transmission frequency | p. 1 |
Where to find it in the PDF
- Product description and pairing p. 1
- Advanced settings and maintenance p. 2
Table of contents
Manual images
Click an image to enlargeQuick Guide
The Solight 1L75B is a wireless doorbell system consisting of a transmitter (button) and a receiver (bell). It features a learning code function for pairing, 36 melodies, and adjustable volume. The system can be expanded with multiple transmitters and receivers.
Description of the Doorbell
The receiver features an LED indicator, melody selection/pairing button, and volume control. The transmitter (button) includes the ring button, a delete button, a place for a name badge, and the base for mounting.

Specifications
- Transmitter range: 180m in open space
- Transmission frequency: 433.92 MHz
- Ring volume: 4 stages (0 - 90dB)
- Number of melodies: 36
- Doorbell power supply: 2 x AA (LR06) batteries
- Button power supply: 1 x 3V (CR2032)
- Waterproof protection: IP44 (button only)
Pairing the Button with the Bell
- Insert 2x AA batteries into the doorbell receiver.
- Wait for the "Ding Dong" melody, which indicates the device has entered pairing mode.
- Within 120 seconds, press the button on the transmitter.
- A successful pairing is confirmed by the "Ding Dong" melody. If it does not sound, repeat the process.
To pair multiple buttons, repeat the process for each button. A maximum of 8 buttons can be paired to one doorbell, and one button can be paired with up to 15 bells.
Selecting Ringtone and Volume
To customize your doorbell:
- Select ringtone: Press button 2 on the doorbell.
- Select volume: Press button 3 on the doorbell.
Button Location and Installation
Before permanent installation, test the range and reliability of the device in your chosen location. Avoid placing the button directly on metal objects or materials containing metal (e.g., steel posts, metal-framed doors), as this may interfere with the signal.

- Pair the button with the doorbell first.
- Attach the installation pad to the surface using double-sided tape or screws (use dowels if screwing in).
- Place the button onto the attached rear part.
Troubleshooting
If the receiver does not ring after pressing the transmitter button, check the following:
- Ensure the distance between the transmitter and receiver is not too great.
- Check for strong sources of signal interference, such as radio/wireless networks, large metal objects, or reinforced concrete walls.
Replacing Batteries
Transmitter: Open the cover with a flathead screwdriver, insert the CR2032 battery as indicated on the plate, and reattach the cover.

Receiver: Open the back cover, insert 2x AA batteries, and close the cover.
Note: The doorbell has internal memory to store paired transmitter codes in case of power failure. The selected melody is retained, but the volume must be set again after a power outage.
Practical help
Common problems
Check the distance between units, ensure there is no signal interference (metal objects, concrete walls), and verify battery levels.
Ensure you press the transmitter button within 120 seconds of the receiver entering pairing mode (indicated by the 'Ding Dong' sound).
Before use
- Insert 2x AA batteries into the receiver.
- Ensure the transmitter has a CR2032 battery installed.
- Test the signal range in the desired location before permanent mounting.
- Avoid mounting the button on metal surfaces.
Images and diagrams
- The manual provides diagrams for battery replacement in both the transmitter and receiver.
- Installation diagrams show how to mount the transmitter base using screws or tape.
Model compatibility
- Solight 1L74T can be used as a replacement button.
- Up to 8 buttons can be paired to one doorbell.
- One button can be paired with up to 15 bells.
Manual page author
David Miller
Documentation analyst
Organizes user manual content into clear summaries, with attention to model details, product context, and everyday usability.