The "AC 1.5W 3LED module" indicates that this is an AC powered LED lighting module with a total power consumption of 1.5 watts and contains three LED lights. Here are some possible characteristics of this type of LED module:

AC power supply: This means that the LED module can be directly connected to an AC power supply, usually a home power supply (such as 110V or 220V), without the need for additional power conversion or voltage regulator.

1.5W: This indicates that the total power consumption of the LED module is 1.5 watts, which is the total electrical power supplied by the power supply.

3 LED module: This indicates that the module contains three LED lights. These LED lights are usually connected in parallel or series to provide illumination together.

This type of LED module is typically used for various home lighting, commercial lighting, or decorative lighting applications. They can provide different brightness and color options to adapt to different lighting needs.

Please note that specific specifications and performance characteristics may vary depending on the manufacturer and model, including color temperature, brightness, power supply voltage, and appearance design. If you need more detailed information about a specific "1.5W 3LED module for communication", it is recommended to check the manufacturer's product specifications or contact the supplier for more detailed information.