When you choose a Xiaomi TV, one of the key parameters is screen brightness, measured in candela per square meter (cd/m2), which determines how comfortable it is to watch movies during the day in bright light or at night in complete darkness. However, manufacturers rarely specify the exact values of candela in the characteristics, and if they do, often overstate or cite data for ideal laboratory conditions.
In this article, we will analyze the real brightness indicators for all popular Xiaomi TV series (including Mi TV A Pro, Redmi Smart TV, Premium QLED and others), explain how candela affect the perception of a picture, and teach you to measure brightness yourself using a smartphone or specialized devices.
What are candela in TV and why is it important?
Candela (cd/m2) is a unit of measure of the brightness of the light that a screen emits, and the higher this indicator, the better the TV copes with ambient lighting.
- π 100-200 cd/m2 is enough for a dark room, but during the day the picture will be faded.
- βοΈ 300-500 cd/m2 β optimal for most living quarters with windows.
- π 600+ cd/m2 β suitable for very bright rooms or commercial use (e.g. in shop windows).
Manufacturers often indicate peak brightness (the maximum value when playing bright scenes), but in reality the TV rarely works on such indicators constantly. For example, the Xiaomi Mi TV Q2 75" in the characteristics has the declared 450 cd / m2, but when tested in HDR mode, the brightness drops to 380-400 cd / m2 due to power consumption restrictions.
β οΈ Warning: Don't confuse brightness (candela) with contrast. Even a TV with 1000 cd/m2 will look dull if it has a low contrast ratio (for example, cheap ones). IPS-panels).
It is also worth considering that Xiaomi uses different types of matrices:
- πΊ VA-panels (in most models) β high contrast, but smaller viewing angles.
- π QLED (in premium series) - brightness up to 1000 cd / m2, but more expensive.
- π‘ OLED (rarely, for example, Mi TV Master OLED) β Self-emitting pixels, perfect black, but risk of burnout.
Real values of candelas in Xiaomi TVs (2020β2026)
We analyzed data from official specifications, test reports (including Rtings.com, DisplaySpec) and user reviews to create a table of real brightness for popular models. Note: values may vary depending on the mode (SDR/HDR) and eco-mode settings.
| Model | Type of matrix | Declared brightness (cd/m2) | Real brightness (SDR) | Real brightness (HDR) | Year of release |
|---|---|---|---|---|---|
| Xiaomi Mi TV A Pro 55" | VA | 350 | 280β300 | 320β340 | 2023 |
| Xiaomi Redmi Smart TV X55 | VA | 300 | 250β270 | 290β310 | 2022 |
| Xiaomi Mi TV Q2 75" | QLED | 450 | 380β400 | 500β550 | 2023 |
| Xiaomi Mi TV Master OLED 65" | OLED | 800 (peak) | 150β200 | 600β700 | 2021 |
| Xiaomi Premium QLED 85" | QLED | 1000 | 450β500 | 800β900 | 2026 |
Important: OLED-TVs (e.g. Mi) TV Master OLED) brightness SDR-It's artificially low to save the life of the panel. HDR-scenes with small bright objects (such as sun or headlights).
If your model did not get into the table, you can focus on the following patterns:
- π Budget series (Redmi Smart) TV) β 250-300 cd/mΒ².
- π Mid-segment (Mi) TV A Pro, P1) β 300-400 cd/mΒ².
- π Premium (QLED, Master: 450-1000 cd/mΒ².
π‘
The actual brightness is always lower than the declared 10-20% due to the limitations on power consumption and heating of the matrix.
How to measure candela on your Xiaomi TV
If you want to know the exact brightness of your TV, there are a few ways to do this:
Method 1: Using a smartphone (approximately)
Use luxemeter applications like Lux Light Meter (Android) or Light Meter (iOS).
- Open a white screen on the TV (you can use a YouTube video with a test signal).
- Attach the smartphone screen to the TV (light sensor should be directed to the center).
- Write down the numbers in lux (lx).
- Transfer the suites to candela according to the formula: cd / m2 β LC / Ο (for example, 300 LC β 95 cd / m2).
β οΈ This method gives an error of up to 30%, as the sensors of smartphones are not calibrated for accurate measurements.
Method 2: With the help of specialized devices
For accurate measurements, use:
- π Colorimeter (e.g. X-Rite) i1Display Pro β measures brightness, color temperature and contrast.
- π¦ Luxmeter (e.g, UNI-T UT383) β budgetary option, but requires manual recalculation.
Professional tests are conducted in a dark room with calibrated equipment, for example, for Xiaomi Mi TV P1, measurements show:
- Brightness in Standard mode: 290 cd / m2.
- Brightness in Movie mode: 220 cd / m2 (lowered for better black transmission).
- Peak brightness in HDR: 410 cd/m2 (per 10% of the screen area).
Turn off automatic brightness control | Set "Standard" mode |Use test white screen |Take measurements in a dark room-->
Why Xiaomi TV is dull: 5 reasons and solutions
If your Xiaomi TV seems too dim, even if it has high brightness, check out the following points:
- Eco-mode or light sensor In settings, you can turn on energy saving mode or automatic brightness control. Turn it off along the way: Settings β Display and sound β Brightness β Auto-brightness (off).
- Movie or Energy Saving modes artificially lower the brightness. Switch to Standard or Vivid.
- Some versions of Xiaomi software had a brightness limiting bug. Update the TV through Settings β About TV β System Update.
- Problems with illumination B VA-And when the lights go down, the lights go down, and the lights go down, that's a reason for the service center.
- Even at 500 cd/m2, direct sunlight can clog the picture. Use curtains or anti-reflective coatings.
β οΈ Note: If after resetting settings (Settings) β Preferences β Reset brightness has not recovered, the problem may be in the hardware (for example, a malfunction of the backlight driver.
π‘
To check the uniformity of the backlight, open a gray screen (50% brightness) in complete darkness on the TV, and dark spots at the corners or edges indicate a matrix defect.
Xiaomi Comparison with Competitors: Who is Brighter?
For objectivity, compare the brightness of Xiaomi TVs with models of other brands in the same price segment (data for 2026):
| Brand and model | Type of matrix | Brightness (SDR), cd/m2 | Brightness (HDR), cd/m2 | Price (from) |
|---|---|---|---|---|
| Xiaomi Premium QLED 65" | QLED | 450 | 800 | 80 000 β½ |
| Samsung Q60C 65" | QLED | 350 | 600 | 90 000 β½ |
| LG QNED80 65" | QNED (Mini LED) | 400 | 700 | 100 000 β½ |
| TCL C745 65" | QLED | 380 | 500 | 70 000 β½ |
As you can see from the table, Xiaomi in the premium segment (Premium QLED) is not inferior to Samsung and LG in brightness, but loses in HDR processing (competitors have better local dimming). In the budget segment (Redmi Smart TV), brightness is below the market average, but the price is appropriate.
If youβre looking for brightness, look for Direct LED or Mini LED models that give you a more uniform and bright glow. For example, the Xiaomi Mi TV Q2 75 uses direct lighting with 96 dimming zones, which improves contrast and peak brightness.
Why is QLED brighter than a regular LED?
How to increase the brightness of the Xiaomi TV: hidden settings
If the standard settings do not give enough brightness, you can use hidden modes or calibration through the service menu. β οΈ Warning: Mistakes can lead to TV reset!
Method 1: Service menu (for experienced users)
To open the service menu on most Xiaomi models, follow the following steps:
- Turn off the TV remote.
- Press the remote sequentially: Menu β 1 β 3 β 9 β Menu (for some models β Menu β 1 β 1 β 4 β 7).
- In the menu, look for Backlight or Brightness Control.
- Increase the value by 10-15% from the current one (do not put a maximum, so as not to reduce the life of the matrix!).
- Save the settings and restart the TV.
Method 2: Calibration by ADB
For advanced users, you can change the brightness parameters through ADB (Android Debug Bridge).
- π₯οΈ Computer installed ADB.
- π Included debugging by USB on the TV (Settings) β On TV. β POS version β 7 times press).
A command to increase brightness (e.g. up to 80%):
adb shell settings put system screen_brightness 204Where 204 is the brightness value in the range of 0-255 (80% of the maximum).
β οΈ Note: Change settings through the service menu or ADB If you are not sure of your actions, contact the service center.
π‘
After manually adjusting the brightness, check the TV for broken pixels. A sharp increase in backlight can reveal hidden matrix defects.