LED technologies

LED strip amplifier / LED amplifier / RGB amplifier. Features, problems, choice.

LED strip amplifier / LED amplifier / RGB amplifier. Features, problems, choice.

A seemingly simple thing - an LED amplifier. The user chooses a device of suitable output power and uses it. But the devil lies in the details. From this post, you will know how LED strip amplifiers differ, what is not written in the documentation, where and in what lies, and what problems these devices can create. And also any buyer wants to understand why these simple devices have a large price range.

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PWM frequency in Shelly RGBW2 controller

PWM frequency in Shelly RGBW2 controller

The poor quality of light (flashing) in Shelly bulbs and LED controllers damages your eyes. However, the cause of light flickering (PWM frequency) can be fixed with your hands in 10 minutes. How can we improve the light performance?

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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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