10 Tips to Qualify your LED Tube Lamps
Well, before jumping into any details, don’t forget why you retrofit LED tube lamps. Saving energy? Yes. ROI? Yes, but even more important is, you are buying “light” for the “eyes”, and you only have one pair of eyes. Qualities do matter. 1. LED chips : Make sure your LED chips are qualified. They need to be LM80 certified, refer to the link for details: Poor LED chips could generate harmful blue light. The light output could decay fast. The light color could shift and make you feel dizzy. 2. No LED Hotspots : Most users feel uncomfortable looking at LED hotspots. In order to achieve even light distribution, the lamps need more LEDs inside with good light diffuser. R17D ETL approval 120lm/w led tube 8ft 48w In order to achieve low temperature, we need 1) LEDs are under-driven. 2) Good heat sink/dissipation. 3) No internal LED driver inside the tube lamps. 5. Under-driving LEDs...