Abstract: Disclosed are a method and system for controlling a display condition which is pre-written into a passive light board by a mobile device. A display status is pre-written into a passive light board which is not powered by electricity before, and a control application program loaded into the mobile device is provided for a user to input a brightness parameter and a color temperature parameter. The light board which is not powered by electricity before can carry out the presetting of the display condition, and related manufacturers can set the light boards quickly and easily after the light boards exit the factory, and the light boards can display according to the conditions in compliance with the brightness parameter and the color temperature parameter after the light boards are powered on.

Abstract: Disclosed are a method and system for controlling a display condition which is pre-written into a passive light board by a mobile device. A display status is pre-written into a passive light board which is not powered by electricity before, and a control application program loaded into the mobile device is provided for a user to input a brightness parameter and a color temperature parameter. The light board which is not powered by electricity before can carry out the presetting of the display condition, and related manufacturers can set the light boards quickly and easily after the light boards exit the factory, and the light boards can display according to the conditions in compliance with the brightness parameter and the color temperature parameter after the light boards are powered on.

Abstract: A lighting device using multiple scattered light sources to change illumination angle and color temperature by adjusting light intensity includes a central light source portion, a peripheral light source portion and an optical lens on a lamp board. The optical lens covers the central and peripheral light source portions. The central light source portion has first cold LEDs and first warm LEDs equidistantly installed near a setting area of the lamp board. The peripheral light source portion has second cold LEDs and second warm LEDs installed within an area range that takes the setting center as center of circle and has a diameter of 6-8 mm. A controller is used to adjust a driving current intensity of the central and peripheral light source portion to adjust the illumination angle and color temperature of the lighting device, and the intensity performance or On/Off state of each LED can be controlled independently.

Abstract: An LED lamp panel capable of adjusting color temperature includes a first LED lighting circuit, a second LED lighting circuit and a conduction control circuit. The first LED lighting circuit has first color temperature information, the second LED lighting circuit has second color temperature information, and both first and second LED lighting circuits are electrically connected to conduction a control circuit. The LED lamp panel is capable of adjusting the color temperature of the LED lamp panel according to the color temperature information of the manufactured LED light panel, so as to adjust the color temperature of a lamp product. This invention is applicable for changes of market requirements flexibly to reduce the lighting manufacturers' pressure and risk of inventory. Consumers can adjust the color temperature of the lamp by themselves to fit different living or working environments.