1) High efficiency and less heat;
LED bulbs drivers are usually embedded within the lamp body, connected with LED chips. Thus the heat generated by LED chips and drivers will add up together, which make the cooling designs more difficult. In normally conditions, the heat generation and dissipation will be in a balance, which will be the working temperature of LED bulb. In the meanwhile, the working temperature of LED bulbs also determined the service life of them.
2) Power suppliers and long service life;
According to the bucket theory, the shortest plank decided how much water can this bucket hold. Power supplier is the shortest plank of LED lamps when judging its service life. Thus for many LED manufacturers, designing or choosing a right power supplier is significant for LED lights.
3) Small current pulse amplitude;
Current pulse amplitude is another important parameter when judging the quality of LED bulb drivers. Normally, small current pulse amplitude can not only improve the quality of the illumination but also prolong the lifetime of this device, thus extending the life time of LED bulbs.
4) Internal current with high frequency;
Current ripple with high frequency can reduce or even eliminate flickers, which will be captured by human eyes and cause damages. Certainly, high quality LED bulbs should not have substantial current ripple.
5) High power factor;
Improving the power factor of LED bulb drivers can increase the energy efficiency of power grid, reducing invalid loss. At present, many countries have their own regulations for the power factor of electrical appliances, including LED lighting products. For example, according to the related standard of Germany, every electrical devices that imported into Germany should have a power factor larger than 90.
6) Electrical isolation;
LED drivers are usually powered by the power grid, directly working under high voltage AC. While LED work under DC. Electrical isolation is necessary between them. Normally, designers will design isolated circuits between the input end and the output end of LED drivers.
7) Protection;
Generally, LED derivers should have protection measures for over-temperature and over-current.
8) Small size;
Generally LED bulb drivers are small sized, since only small drivers can be integrated built into LED bulbs.
9) Low production costs;
Low costs will have good market performances, which is the universal law of the Chinese market and cannot be varied in the short term. LED companies must adapt this.