At present, LED lighting fixtures are used in a wide range of applications. It is divided according to space,airport lighting, indoor lighting, outdoor lighting, building lighting, and so on, the more widely used lamps and lanterns are downlights, spotlights, and panel lights. The LED dimmable power supply is now available in many lighting fixtures. It has been widely used. In the future, this kind of power supply will be the advocacy and guidance of green lighting in the society. Its development will bring technical support to the LED lighting industry.It can also provide home users with professional use of the most reliable experience, so the prospects for the development of this power is very impressive.