Light Master Pro is a free Android app developed by Opple Lighting Co.ltd. It is a utility tool designed to work with a portable smart BLE device. The app provides a readable interface for photometric measurement, including illumination, color temperature and color coordinates, CRI, and flicker measurement, depending on your device.

The app is easy to use, and it offers a user-friendly interface that is simple to navigate. It is a great tool for professionals in the lighting industry who need to take photometric measurements on the go. With the app, you can easily measure illumination, color temperature, and color coordinates, ensuring that your lighting is of the highest quality.

If you have a device with a 3.5mm earphone socket, you can also download the Light Master app, which offers similar features. Overall, Light Master Pro is a useful tool for anyone who needs to take photometric measurements on the go.