0-10V control mode:

0-10V dimming, through the 0-10V dimmer or 0-10V dimming control system to simulate a 0V to 10V range of DC voltage signal to 0-10V dimming drive to achieve dimming control, 0-10V dimming drive by identifying the provided 0-10V voltage signal size to adjust the size of the 0-10V dimming drive output, such as when the provided signal is 0V shutdown output, provide 10V maximum output

Difference between 0-10V and 1-10V dimming:

The on-off and shutdown voltages are different, 0-10V is turned on at 0.3V, 1-10V is turned on at 0.7~0.8V, and the lamp will not be turned off

Because the safety test organization will strictly test ± 10% according to the given operating voltage range. So actually the four ranges correspond to 90-305Vac, 108-305Vac, 90-264Vac, 180-305Vac, 249-528Vac,

Our company's driver reliability test will be based on this above range to verify the test to ensure that the working voltage range works normally.

PF is the abbreviation of Power Factor, which refers to the power factor, which is the ratio of active power to apparent power; PFC is an abbreviation for Power Factor Corrector, which refers to power factor correction; High power factor can:

(1) Reduce current harmonics;

(2) increase the capacity of the power system;

(3) Reduce line loss and save electric energy.

Low power factor represents low power efficiency, the lower the power factor value represents the higher proportion of electricity consumed in the distribution network, if the low power factor is not corrected, the power company in addition to the active power, but also to provide greater reactive power, which leads to the need for larger generators, transformers, transmission lines, etc., to compensate for losses. Power supplies with PFC function can improve their own energy utilization, reduce losses, and reduce harmonic pollution to the grid.

LED due to the absence of toxic substances, environmental protection, long life, high photoelectric efficiency and many other advantages, LED chip design, production and manufacturing process has been quite mature, the damage of the entire LED lighting system is mainly the damage of the LED driver; Low-quality LED drive directly causes damage to LED chips due to imperfect protection, low constant current accuracy and large current fluctuations. Therefore, LED drive power is the key to LED lamps, it is like a person's heart, to manufacture high-quality, LED lamps for lighting must use high-quality LED power drivers, in order to meet the harsh working environment of LED lighting systems and high maintenance costs.

(1) Standardized professional design process control: technical pre-research, feasibility assessment, preliminary design, detailed design, engineering prototype, small batch trial production.

(2) Reasonable component design margin

(3) Selection of high-quality components: electrolytic capacitors, ICs, power semiconductors, magnetic components, etc.

(4) Strict quality verification and testing procedures : stress analysis, EVT, SVT, DVT and other tests and MTBF calculations and experimental verification.

The parameter of the output ripple current, when the ripple current is less than 10%,the driver can only make lamps with no strobe.  If the ripple current greater than 10%-20% , or more than 20-100%, the driver can only make lamps with strobe

LED drive filling is beneficial for thermal conductivity and waterproofing:

(1) Through glue filling, the heat of the component can be exported and dissipated through the shell, so that the internal temperature is uniform and the overall temperature is reduced.

(2) The inside of the driver is filled by glue, and the infiltration of water molecules is reduced and the waterproof performance is improved through the cooperation with structural parts such as the shell, so as to improve the outdoor adaptability of the LED drive.

(1) EVT–Electrical Verification Test, electrical verification test, mainly includes preliminary tests on input and output voltage, current, power, efficiency, power factor, start-up time, rise time, source regulation, load regulation, output ripple and noise, overshoot, overvoltage, overcurrent, overload, overtemperature and short circuit protection in the early stage of design.

(2) SVT - Specification Verification Test, specification verification test, mainly including input and output voltage, current, power, efficiency, power factor, boot time, rise time, source regulation, load regulation, output ripple and noise, overshoot, overvoltage, overcurrent, overload, overtemperature, short circuit protection, vibration, etc. at different ambient temperatures to confirm the test.

(3) DVT - Design Verification Test, design verification test, mainly including batch products at different ambient temperatures input and output voltage, current, power, efficiency, power factor, boot time, rise time, source regulation, load regulation, output ripple and noise, overshoot, overvoltage, overcurrent, overload, overtemperature and short circuit protection.