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What is the reason that led lights are not bright enough?
Release time:
Nov 28,2024
Source:
We have to make clear what kind of light head in our own home, otherwise we don't know how to describe it when we buy.
LED lights appear brightness weak this situation has two possibilities, first, lamp bead aging, luminous efficiency becomes low, lamp beads for a long time union heat aging, brightness gradually reduced. Second, the supply voltage is reduced, the lamp bead supply voltage from the switching power supply, the power supply appears to reduce the output voltage, the brightness of the lamp bead will also be reduced.
There are two possible reasons. One is that the specifications of the power supply do not match the light bar, and the driving current is small. The other reason is the brightness decrease caused by the aging of the lamp beads.
The luminous efficiency of the led lamp beads used in the lamps. Input different current will let led have different light efficiency, often reduce the power supply current than full power supply light efficiency is higher. Power is the same, high luminous efficiency of high brightness; lamps and lanterns internal led series parallel connection form.
It is also possible that the light source model is not the same, the same input current luminous efficacy will have a high and low, so the brightness will also be different. First of all, we have to make clear what kind of light head in our own home, otherwise we don't know how to describe it when we buy.
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