What are the parameters of LED driver & power supply ?
Input voltage range:
Users can see that the input voltage range on the power supply is 85~265VAC while the actual use is 100~240VAC. In fact, during the safety certification, the so-called±10% test will be conducted (IEC60950 +6% ~ -10%), so the voltage range defined in the power supply specifications will not be a problem in use; and the power supply is marked to meet the safety specifications and ensure that the user can correctly input the power supply. The power supply is labeled to meet safety regulations and to ensure that the user can input power correctly.
Power Factor:
Power factor correction is to improve the ratio of effective power to apparent power at the input of the power supply. Generally, for models without PFC circuit, the power factor at the input end is only 0.4~0.6, while with active PFC circuit, it can reach 0.95 or more, and the relevant formula is as follows
Apparent power = input voltage × input current (VA)
Effective power = input vo...
2022-12-30
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