Here, the torch that accompanies each character's weapon is practically useless, requiring players to rely on external light sources and hope their foes wander into the target areas. (thejimquisition.com)
This is because the OLED screen is able to produce its colours without any of the light pollution you get with the sort of external lighting systems LCD TVs have to use. (techradar.com)
Keep in mind that your biological clock is dependent on external lighting. (elearningindustry.com)