Can LED panel lights change lamp beads to improve light efficiency?
For LED panel lights, can changing the lamp beads improve the light efficiency? Or to improve light efficiency, which parameters need to be improved?
1 Reducing the use current will linearly increase the light efficiency of the lamp beads, and the power will decrease accordingly.
If the current host is using 0.2W lamp beads, replace the 0.5W lamp beads with a larger chip package, the luminous efficiency will increase a lot. The cost will also increase.
The landlord wants to calculate the lighting effect of the panel designed by himself, and he needs to understand the current used, the light effect of the lamp bead 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 dual-chip packaged lamp beads. 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 luminous efficiency, reducing the drive current of the lamp beads may also improve the overall luminous efficiency!
3 Three considerations:
(1) Lamp beads, the upstairs has already explained more clearly, using high-power lamp beads, reducing the current to use 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? With the same parameters, using a power supply with 85% efficiency and a power supply with 90% efficiency, the light efficiency is naturally higher in the latter;
(3) Structural materials, there are two pieces here, one is the light transmittance of your acrylic light guide plate, and the other is the reflectivity of your back reflective paper; the actual operation space that can be improved here is not large, because the panel light kit is a manufacturer Matched, so it can basically be ruled out.
Summary: Still think of a way on the lamp beads and power supply.
