light structure design The flat screen lighting directs light precisely to the reading area and minimizes spillover. The builtin light barrier keeps light in the intended zone, so reading in bed does not disturb others. Optical angle design The optical angle is scientifically tuned to resemble natural light. The color temperature is white with a slight yellow tint, creating a warm environment that supports long reading sessions without eye fatigue. The brightness is adjustable, with an initial setting optimized for reading. Lightweight and portable Ultralight at 105 grams with a compact form factor, this device is easy to carry on campus, in parks, gardens, or other dark places for reading and study. It can also be used as a bookmark when not in active use. Low power consumption LED bulbs The LEDs provide brightness with low power consumption and low voltage for energy efficiency and extended life. It is powered by three AAA batteries, delivering more than 50 hours of use under typical conditions. Use cases Reading in bed at night without disturbing a partner or others in the room. Studying or reading outdoors in dim environments on campus, in parks, or in gardens. Onthego reading or using it as a convenient bookmark for quick access to pages.