Backlit ultra-thin LED downlight is an ultra-thin LED recessed lighting fixture using backlight technology. By arranging the LED light source directly on the back of the lamp, it achieves more uniform light distribution and reduces dark areas or light attenuation problems that may occur with traditional edge-lit downlights. This kind of downlight is ultra-thin, lightweight, high-brightness, energy-saving and durable, and is widely used for indoor lighting..