Do LED panel lights, can changing the lamp beads improve the light efficiency?
To make LED panel lights, can changing the lamp beads improve the light efficiency? Or to improve the light efficiency, what parameters need to be improved?
1. Reducing the use current will linearly increase the luminous efficacy of the lamp beads, and the power will decrease accordingly.
If the current owner is using a 0.2W lamp bead, replacing the 0.5W lamp bead with a larger chip package will increase the light efficiency a lot. Costs will also increase.
If the landlord wants to calculate the lighting effect of the panel he designed, he needs to know the current used, the luminous effect of the lamp beads under this current, and the loss of each component.
If 0.5W is not high enough, and you are worried about the power drop, you can also use a two-chip packaged lamp bead. The design of high luminous efficiency, the higher the luminous efficiency, the higher the cost, which is not necessarily proportional.
2. In addition to changing the lamp beads with high light efficiency, reducing the driving current of the lamp beads may also improve the overall light efficiency!
Consider three aspects:
(1) Lamp beads, it has been explained clearly upstairs. Using high-power lamp beads and reducing the current can increase the light efficiency, but at the same time, the cost will increase accordingly;
(2) Power supply, what is the efficiency of the existing power supply under your test? For the same parameters, if you use a power supply with 85% efficiency and a power supply with 90% efficiency, the light efficiency is naturally the latter higher;
(3) Structural materials, there are two pieces here, one is the transmittance of your acrylic light guide plate, and the other is the reflectivity of your back reflective paper; the actual operating space that can be improved here is not large, because the panel light kit is a manufacturer match, so it can basically be ruled out.
Summary: still think of a solution on the lamp beads and power supply.
