LED technologies

Shelly RGBW2 controller and Shelly Duo RGBW bulb. Dangerous light pulsations.

Shelly RGBW2 controller and Shelly Duo RGBW bulb. Dangerous light pulsations.

I found dangerous light pulsations with the Shelly RGBW2 LED controller and the Shelly Duo RGBW GU10 bulbs. I studied this feature and compared my experimental results with current requirements and recommendations.

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Effect of reducing the LED strip supply voltage on the light emitted

Effect of reducing the LED strip supply voltage on the light emitted

How quickly does the illumination reduce when the supply voltage decreases? How does the illumination decrease due to voltage loss in a long LED strip?

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LED strip / lights connectors and maximum currents

LED strip / lights connectors and maximum currents

What happens if the installer chooses the wrong connector for the LED strip or lights? What happens when a connector passes a high current? What is more dangerous - a thin wire or a low-quality connector?

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Thermal measurements of LED strips. Conclusions

Thermal measurements of LED strips. Conclusions

How does the power consumption affect the LED chip heating? Can I mount the LED strip on the chipboard directly without the aluminum profile? Is COB technology really more efficient at dissipating heat from LED chips than traditional SMD technology?

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Why is a 24-volt LED strip better than a 12-volt power supply? Why you can’t connect long LED strips to the power supply?

Why is a 24-volt LED strip better than a 12-volt power supply? Why you can’t connect long LED strips to the power supply?

Experiment/study LED strip internal conductors resistance. Voltage reduction in long strips. Influence of LED strips inner conductors resistance on the segments power supply. How to connect long LED strips correctly?

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Convection heat transfer from the LED strip

Convection heat transfer from the LED strip

How does air dissipate heat from the LED strip? How much air cools the LED strip?

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Heating LED strips on aluminum profile in chipboard

Heating LED strips on aluminum profile in chipboard

Full simulation of led lights under the cabinet How hot are the LED strips on the aluminum profile? How hot are the LED strips on an aluminum profile in the chipboard?

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Heating LED strips on chipboard (cabinet simulation)

Heating LED strips on chipboard (cabinet simulation)

Heating of different types of led strips on chipboard. How hot are the LED strips on chipboard without an aluminum profile? How hot are these LED strips on chipboard with an additional diffuser?

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What is a COB LED strip? What’s inside a COB strip?

What is a COB LED strip? What’s inside a COB strip?

Let’s look inside a COB LED strip (and what is it anyway?) Introduction about the construction of a white light LED strip. Removing the phosphor and examining the chip sizes.

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Different types of LED strips. Power consumption and heating under different conditions.

Different types of LED strips. Power consumption and heating under different conditions.

Real power consumption of led strips and heating without heat sink. How much does the real power consumption of LED strips differ from the power consumption declared by the manufacturers? How hot do LED strips of different types, wattages and widths under different conditions?

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