# Light Master Pro

> Light Master Pro provides color temperature and color coordinates measurement.

Canonical page: [https://chrome-stats.com/d/com.opple.lightmasterpro](https://chrome-stats.com/d/com.opple.lightmasterpro)

## Overview

- **ID:** `com.opple.lightmasterpro`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Opple Lighting Co.ltd
- **Category:** TOOLS
- **Downloads:** 27,248
- **Rating:** 1.00 / 5 (103 ratings)
- **Version:** 1.0.5
- **Last updated:** 2023-04-11
- **First published:** 2019-10-08
- **Publisher country:** CN
- **Size:** 26 MB
- **Data as of:** 2026-09-11
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.opple.lightmasterpro)
- **Privacy policy:** [https://iot-download.opple.com/opple/smart/lightMaster/private/en](https://iot-download.opple.com/opple/smart/lightMaster/private/en)

## Description

Light Master Pro is a versatile Chrome extension designed to work seamlessly with a portable smart BLE device to provide precise photometric measurements. It offers an intuitive, readable interface that displays essential lighting metrics such as illumination levels, color temperature, color coordinates, Color Rendering Index (CRI), and flicker measurements depending on the connected device's capabilities.

For users with devices equipped with a 3.5mm earphone socket, the companion app 【Light Master】 is recommended. Light Master Pro is ideal for professionals and enthusiasts who require accurate and accessible color measurement tools in the field of lighting design, photography, and quality control.

## Rankings

- #384,099 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_COARSE_LOCATION`
- `android.permission.ACCESS_FINE_LOCATION`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.ACCESS_WIFI_STATE`
- `android.permission.BLUETOOTH_ADVERTISE`
- `android.permission.BLUETOOTH_CONNECT`
- `android.permission.BLUETOOTH_SCAN`
- `android.permission.INTERNET`
- `android.permission.READ_EXTERNAL_STORAGE`
- `android.permission.READ_LOGS`
- `android.permission.SYSTEM_ALERT_WINDOW`
- `android.permission.WRITE_EXTERNAL_STORAGE`
- `com.google.android.c2dm.permission.RECEIVE`
- `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE`

## Review summary

User reviews show the app is valued for testing lights and overall usefulness, with several praising its functionality and affordable price. However, repeated complaints center on connectivity: frequent failures to pair with Gen 4/master 4 meters and broad compatibility issues across devices. Critics also want more features, such as exportable reports and visible Duv values, and some raise privacy concerns about forced location sharing. Overall, the app is seen as helpful and affordable but hampered by major connectivity problems and a sparse feature set.

### Pros

- Works well for testing lights
- Useful tool with affordable price
- Generally functional and provides great tools for measurements

### Cons

- Connectivity issues with Gen 4/master 4 and inability to connect
- Doesn't work reliably on many devices / general compatibility problems
- Barebones feature set; missing export/report features and Duv value visibility
- Forced precise location sharing raises privacy concerns

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.opple.lightmasterpro)