The comparison between the Govee TV Backlight 3 Lite and the Govee TV Backlight S3 is based on several key aspects:

## Compatibility and size
- The Govee TV Backlight 3 Lite is suitable for TVs with a size of 55-65 inches and has a length of 3.6 metres.
- The Govee TV Backlight S3 is compatible with TVs from 55-85 inches and offers customisation to different TV sizes through its modular design.

## Technology and colour accuracy
- The Govee TV Backlight 3 Lite uses an upgraded chip technology with fisheye correction that provides more precise colour accuracy and adjustment.
- The Govee TV Backlight S3 features the latest generation of colour accuracy technology, offering even greater precision and a wider colour spectrum.

## Installation and design
- The Govee TV Backlight 3 Lite has a gravity-based suspension design that facilitates installation on ultra-thin TVs.
- The Govee TV Backlight S3 uses an adhesive design that allows for easy installation on the back of the TV and covers all four sides of the TV.

## Smart Home Integration
- Both models are compatible with smart home systems such as Amazon Alexa, Google Assistant and others. However, the Govee TV Backlight S3 may support additional integrations through the latest technologies, such as Matter compatibility, similar to the 3 Lite but with potentially enhanced functions.

## General functions
- Both models offer auto switch off when the screen is blank or static and voice control functions. However, the Govee TV Backlight S3 could offer additional functions or improvements in usability and performance that are not present in the 3 Lite.

These differences show that the Govee TV Backlight S3 offers the latest technologies and advanced functions, while the 3 Lite already has established and proven functions.