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Inside a new Philips ultra-efficient LED lamp (with schematic)
12W Syska Supermax LED Bulb, 1200 lm, Cool White at Rs 130/box in Gorakhpur
Ultra efficient Philips lighting
Philips Ultra Efficient lighting
Simplified schematic diagram of the LED lighting system showing the
Ultra efficient Philips lighting
Philips Ultra Efficient LED lights uses 60% less energy, 3.5x longer lifespan than standard LEDs - SoyaCincau
How LED Light Bulbs Work
LED lamp - Wikipedia