What is the average life? What are the test conditions for the average lifetime and photoelectric parameters? What is the national standard

The average life span of the lamp is to maintain the rate of light to meet the requirements of national standards and can continue to light up to 50% of the lamp to reach a single lamp life of the cumulative time (ie, the life of the lamp when the failure of 50%).

National standards for electronic energy-saving lamp life test conditions: 15~40 degrees to avoid excessive ventilation; 50Hz + 0.5%, 220V + + 2%, the lamp head up; 24h switch within the (2h45min open 15min off)

National standards for single end fluorescent lamp life test conditions: 15~50 degrees without wind environment, lamp head up; 50Hz + 0.5%, 220V + + 2%. The average life expectancy of the national standard is: 5000h.