Professional Custom Lamp Holder Accessories Manufacturer

△ts finished lamp holders cap temperature rise measured in accordance with the QB / T 2512, its temperature rise during the start of the lights and the future stability and stable time should not exceed the following values​​:
E27 ................................................. .................. 120 K
The temperature rise and a temperature rise of 60 W (maximum power) incandescent incandescent tools used to prevent overheating. Incandescent lamps heat resistance Heat test source (HTS) lamp examination.
All tests should be used to the rated voltage. If the lamp only labeled voltage range, it should be tested with the average value of the voltage range, but the difference between the upper and lower limits of the voltage range of its average voltage value should not exceed 2.5%. For a wide voltage range of the lamp, when tested using the highest value in its range.