Led street lamp power supply quality street lamp control scheme of identification techniques

Power of the lamps and lanterns of LED project-light lamp life good or not directly determines its service life, but also directly affect the potential power of LED project-light lamp. So the quality of LED power supply, how to judge? What the influence factors of it? The author today for

 LED project-light lamp

' LED project-light lamp LEDFlood Light, also known as the LED spotlights, LED to shoot the Light. 】 The lamps and lanterns of life the power of good or not directly determines its service life, but also directly affect the potential power of LED project-light lamp. So the quality of LED power supply, how to judge? What the influence factors of it? The author today to share a few quick and easy to identify the LED power supply quality stand or fall of skills. A, PFC 【 PFC: English all referred to as 'the Power Factor Correction', which means 'Power Factor', refers to the effective Power and total Power consumption ( Apparent power) The relationship between the effective power is divided by the total power consumption ( Apparent power) The ratio of the. 】 ( Power factor) The height but not necessarily high PFC is good, even the whole oblique wave is small, small ripple, low interference, Because some manufacturers deliberately do PFC is high but ignore this part electromagnetic compatibility) 。 Second, the conversion efficiency of conversion efficiency high and low, the size of the deviation and stability, for example: AC170 - 250 v voltage range, this work from the 170 v - I can try 250 v to debug, changing the voltage from low to high, can see on the power meter 'conversion efficiency, PFC' volatility is big, to prove its stability. Third, whether the rise of temperature of the power supply is high. Such as the power supply itself the higher the temperature, the greater the damage of components. Four, periodically with lamp aging, aging test continuous electricity constant electric about a month can also detect the lamp bead attenuation and lamp shell heat dissipation is good. Five, the current boot is instant impact on lamp bead. Six, testing the stability of the constant flow of current. Seven, testing power supply protection function: whether have over temperature protection, over voltage protection, over current protection, short circuit protection. Eight. A high pressure: ever to more than 3000 v input to output pressure. The input of ever can withstand voltage of 1500 v. A good light, keep at least three years to five years in can use five or six years, the light is not other things, especially outdoors, directly affect the cost of investment on time. So we must study more when choosing the led light quality is unqualified, can refer to the above at the same time the author share some for testing.