BUILT FOR THE HEAT.
TESTED UNDER THE SUN.
VMision outdoor digital signage is evaluated under combined high-temperature and simulated solar-radiation conditions while powered on and operating — providing visible engineering evidence of thermal performance under demanding outdoor conditions.
OUTDOOR DISPLAYS FACE MORE THAN JUST HEAT.
Outdoor digital signage is exposed to multiple heat sources at the same time. High ambient temperature, direct solar radiation and heat generated by the display itself can significantly increase operating temperatures. That is why temperature specifications alone do not tell the full story.
AMBIENT HEAT
High outdoor air temperature reduces the thermal headroom available for the LCD, power supply and control electronics.
SOLAR LOAD
Direct solar radiation heats the front glass and enclosure, adding a significant thermal load beyond ambient temperature alone.
INTERNAL HEAT
The high-brightness backlight, power supply and electronics continuously generate additional heat while the display is operating.
REAL TEST. REAL CONDITIONS.
VMision outdoor digital signage was tested inside a solar-radiation chamber while powered on and operating. Elevated ambient temperature and direct simulated sunlight were applied together to evaluate the thermal performance of the display under demanding outdoor conditions.
TEST CONDITIONS
Environmental and operating parameters were monitored while the display remained powered and exposed to simulated solar radiation.
The solar-radiation chamber continuously monitors irradiance and ambient temperature throughout the test process.
Multiple temperature sensors record the front glass, air inlet and air outlet temperatures as the thermal load develops over time.
THE FRONT GLASS REACHED 80.7°C.
Under the reported 50°C ambient temperature and 1100 ± 50 W/m² solar-irradiation condition, the monitored front-glass channels rose to 78.3–80.7°C. Air-inlet and air-outlet temperatures remained substantially lower. The chart below shows the recorded data from 5 to 95 minutes during the powered test.
CH001 · 95 MIN
The measured glass-surface temperature demonstrates the additional thermal load created when high ambient temperature and simulated solar radiation act on the display at the same time while it remains powered.
Real Test Data · 5–95 Min
DESIGNED TO MOVE HEAT OUT.
Solar radiation adds heat at the display surface while the electronics continue operating internally. The monitored inlet and outlet temperatures show how thermal energy is transferred into the moving airflow during the powered test.
Airflow path: Cool air enters through the upper and lower rear intake vents, absorbs internal heat, and is expelled through three active rear cooling fans.
Average temperature measured across the monitored intake-air channels at 95 minutes.
Heat is transferred into the moving airflow while the display remains powered and operating.
Average temperature measured across the monitored outlet-air channels at 95 minutes.
The warmer outlet air provides direct measured evidence of heat transfer through the monitored airflow path.
AT 95 MIN
WHAT DOES 1200 W/m² REALLY MEAN?
Around 1000 W/m² represents a near-peak full-sun irradiance level rather than an all-day average. In typical low-to-mid altitude locations, irradiance near this level is generally concentrated around solar noon for a limited period of the day.
Solar Irradiance Scale
OF THE 1000 W/m² NEAR-PEAK FULL-SUN REFERENCE
A recorded irradiance level of 1200 W/m² is approximately 20% higher than the commonly used 1000 W/m² full-sun reference, helping put the applied solar load into a more intuitive perspective.
Near-peak irradiance is generally concentrated around solar noon for a limited period rather than maintained throughout the entire day.
The display remained powered while subjected to sustained high solar irradiation and 50°C ambient temperature for the formal two-hour test period.
Hello!
Have questions ?
We have answers !
- Choosing a selection results in a full page refresh.
