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Flicker Free Led Driver

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Flicker Free Led Driver


Light strobe, even when the radiation is still life, the naked eye can not detect the strobe, but also prone to visual fatigue, damage vision.

If it is to observe the moving objects (especially faster) and in the light under the fine work, not only depending on the material is unclear, the greater the damage to the eyes.

Questions about flicker-free light may arise at this point. To be fair, it should be pointed out that fluorescent tubes operated with conventional or low loss ballast also flicker at 100 Hz and the light output is reduced at lower ambient temperatures. Fluorescent lamps operated with an ECG, including energy saving lamps, work at 44 – 50 kHz so that the lamps normally do not flicker. In reality, however, things are a little different. While a higher switching frequency is used, the input capacitors are to small for cost reasons. This causes the high frequency circuit in the lamp to be supplied with a strongly pulsating voltage. This pulsation creates a brightness modulation in the emitted light which is why these lamps often have a rather high level of flicker at 100 Hz.


Features:

  • Input: input voltage range: 100-240Vac, max input voltage range: 100-347Vac.
  • Output: output power range: 24W-30W; output voltage range: 25-40Vdc.
  • Active power factor correction, high PF (PF> 0.95 at 230Vac), low THD (THD <15%), the efficiency can up to reach 91%.
  • Flicker-free coefficient<0.4%.
  • Meet the ERP standards after being installed inside finished LED lights.
  • Open circuit, short circuit and over temperature protections.
  • Surge level: 2KV.
  • Structure: IP20 (screw terminal version).
  • Warranty: 5 years
  • Applications: LED down lights, panel lights, grid lights, track lights and etc.
Technical data:
  • Input voltage:100-277V AC, 47 to 63Hz
  • Output specifications (a):
  • 1)25-40Vdc  600mA  24.00W
  • 2)25-40Vdc  650mA  26.00W
  • 3)25-40Vdc  700mA  28.00W
  • 4)25-40Vdc  750mA  30.00W 
  • 5)25-40Vdc  1100mA  44.00W
  • 6)25-42Vdc   1300mA  54.60W
  • 7)25-40Vdc   1500mA  60W
  • 8)25-40Vdc   2000mA  80.00W
  • Conversion efficiency: 90% at 220Vac
  • Power factor: 0.97 at 220Vac
  • Ripple voltage: ≤1V
  • Current tolerance: ±5%
  • Protective functions: open-circuit and short-circuit
  • Operating temperature: -30 to 50°C
  • Humidity: 20 to 90% RH
  • MTBF calculation: up to 50,000 hours lifespan
  • Certificate: CE, CB, TUV, RCM certified


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