Using a white screen is easy across various devices, including Windows PCs (Dell, HP, Lenovo, ASUS), MacBooks, iPhones, Android smartphones (Samsung, Google Pixel, OnePlus, Xiaomi), tablets (iPad Pro, Surface Pro, Galaxy Tab), and Smart TVs (LG WebOS, Samsung Tizen, Sony Android TV, Roku, Fire TV, Apple TV). Every electronic device needs backlight test for testing their oled , qled & led screens and needs a thorough cleaning with a micro fibre cloth. Even They can use their Televisions as a big flashlight to brighten their rooms to avoid high exposure lights. Well a simple smartphones whether it might a latest or old android or iOS device can light up their environment when electricity turns off.