How do ordinary people judge the quality of LED tubes? Which brand of led tube is of good quality
1. Method one, let the manufacturer provide the integrating sphere test report, the LED lamp parameters, including the LED electrical parameters, and the LED light parameters are clear at a glance.
The electrical parameters are: voltage 85-265v, 180-265v, current = power divided by voltage, PF value is greater than 0.9
The tube parameters are as follows: the light efficiency exceeds 100lm/W, the color temperature is different, and the CRI>80
2. Method 2: Use an illuminance meter to test the illuminance yourself for comparison. At the same height. Different lamps, under the same power, the one with the larger illuminance value is a good lamp
