What do you know about RGB lights?

The colors that appear in RGB lights are particularly clear and bright, even to the extent of high-resolution TVs. This situation is exactly the property of RGB, which announces the properties of red as red, green as green and blue as blue. In the color mix of light, it has more diverse properties.

• What is the difference between RGB lights in series and parallel?

• How to calculate the luminous efficiency of RGB lights?

• What is the light emitting principle of RGB lights?

What is the difference between RGB lights in series and parallel?

The row lights up simultaneously, and the parallel lights up separately.

Because the internal resistance of RGB lights is different, the voltage and current curves are different. At the same time, it is necessary to use a shunt resistor to adjust the current of each lamp bead so that they can glow simultaneously or be switched in series. Conversely, as you separate the lights, then we have to switch them in parallel.

RGB refers to one or more colored lights on the host and peripherals that can be controlled to display the desired color. Due to the limitation of the number of RGB digital strips and circuits controlled by the motherboard, daisy chaining inevitably leads to a linear increase in current. Therefore, parallel connection for power supply and daisy chain for signals are often the final solution.

How to calculate the luminous efficiency of RGB lights?

The luminous efficiency of RGB lights is generally referred to as the external quantum efficiency of the component, which is the product of the internal quantum efficiency of the component and the extraction efficiency of the component. The so-called internal quantum efficiency of the component is actually the electro-optical conversion efficiency of the component itself, which is mainly related to the properties of the component itself (e.g., energy band, defects, impurities of the component material). and the blocking crystal composition and structure of the component. The extraction efficiency of a component refers to the number of photons generated within the component that can actually be measured outside the component after being absorbed, broken and reflected by the component itself. Therefore, factors related to extraction efficiency include the absorption of the component material itself, the geometric structure of the component, the refractive index difference between the component and the packaging material, and the scattering properties of the component structure.

What is the light emitting principle of RGB lights?

The terminal voltage of RGB lights represents a certain potential barrier. When the preload is applied in the forward direction, the potential barrier drops and the majority carriers of the P-range and the N-range diffuse to each other. Since the electron mobility is much greater than the hole mobility, a large number of electrons diffuse into the P-range, which represents the injection of minority charge carriers into the P-range. These electrons recombine with holes in the valence band, and the energy obtained during recombination is released in the form of light energy. This is how RGB lights emit light.

However, when buying an RGB lamp, you need to pay attention to the manufacturer. Only the selected high-quality RGB lights can fully exploit their advantages. Minleon Outdoor Lighting Co., Ltd. is committed to providing perfect RGB lights and service to every customer.