Having complete control over the degree of light is excellent for producing different moods and atmospheres, and dimmable bulbs have long been the perfect approach to attain this degree of light control. When LED bulbs were first introduced, many people deferred the purchases because they were unable to dim, but dimmable LEDs are now widely used and are becoming more efficient. Among many LED bulbs for wholesale, how do you know dimmable LEDs? Here we'll guide you through the vital things that can help you better understand dimmable LED bulbs.
Are All LED Bulbs for Wholesale Dimmable
Regrettably no, not all LED bulbs are dimmable. Traditional incandescent bulbs can be dimmed by almost any system, while LED bulbs need to be manufactured with different types of circuits to achieve excellent dimming effects. The packaging or online product descriptions usually indicate whether the LED bulb is dimmable, but if in doubt, check with the provider prior to purchasing LED bulbs for wholesale.
How Do Dimmable LED Bulbs Work: 4 Dimming Methods
Dimming is the procedure for controlling the amount of electric power provided to the light source. The four most well-known procedures for dimming LED bulbs are all clarified below and insure 0-10V dimming, PWM (Pulse Width Modulation) dimming, Forward-Phase dimming (sometimes called some"Triac" or Incandescent Dimming) and Reverse-Phase dimming (sometimes known as an ELV or Electronic Low Voltage Dimming).
1.0-10V Dimming
This method may use a range of devices to control the dimming. This necessitates extra-low voltage wires but is much more precise than AC phase dimming. 0-10V dimming applies a direct current voltage (DC) between 0 and 10 Volts to make light at varying intensity levels. In the terms of LED bulbs for wholesale, at 10V, the lights controlled by the dimmer are in 100% brightness; at 1V, the measured brightness of the lights is 10%, which can actually be considered as 32% brightness; at 0V, it either turns off the light or dims it to the lowest level, and a switch is needed to turn the light off completely.
0-10V dimming was originally used to dim fluorescent lamps but is now also used for dimmable LED bulbs. It is commonly used in offices, retail spaces, and houses with fixtures that have LED drivers designed for 0-10VDC dimming input. Although it can be used with RGB or RGBW color-changing lights, there are still some limitations. Each of the three or four colors needs to be assigned an area so that the controller can individually adjust the intensity of each color to produce a range of colors.
2.Pulse Width Modulation (PWM Dimming)
PWM is a dimming method that's widespread in LED bulbs for wholesale which use constant-current drivers. This technique operates by adjusting the duty cycle of the current, which leads to changes to the typical current from the series. For dimmable LED bulbs, PWM can effectively meet the precise dimming requirements. Because it can handle the high dimming ratio at 100 Hz (the high frequency at which the human eye cannot detect the flicker effect), and has the least impact on LED color / color temperature. In order to achieve dimming, the switching speed of the LED is very fast. For example, at the highest setting (full output), the LED remains "on" and never switches. At a dimming rate of 75%, the light of dimmable LED bulbs "turns on" only 25% of the time. When plotted on a chart, current changes appear to be staggered, like a set of evenly distributed blocks or steps, with no long-term rising or falling patterns (fall / rise rate / value is constant).
This kind of dimming is excellent for LED bulbs for wholesale which have to be dimmed under 40% in a really consistent way. PWM is acceptable for color-mixing needs, because of the precise dimming properties. Last, it may be integrated in digital systems through direct electronic control. Manufactures would choose this method for dimmable LED bulbs as per specific situation.
3.Leading Edge
Leading Edge is also known as "Triac Dimming", "SCR Dimming", and Forward Phase control dimming, Forward Phase dimming control is the most common form of phase dimming. It employs a silicon device, generally an SCR or a Triac, to flip the mains waveform on a way through its own cycle. By changing the stage where the waveform turns on, we could change the total amount of energy delivered to the load.
To LED bulbs for wholesale, Leading Edge is the cheapest, relatively simple, and widely available technology. But it has a disadvantage that it often causes buzz, which affects the performance of dimmable LED bulbs. Switching from zero to the peak of the wave is sufficient to cause vibration in the electronic component each time the electronic surge moves. If the vibration is strong enough, the dimmer (and sometimes the lamp) will buzz.
4.Trailing Edge
Trailing-Edge (ELV) is a more innovative technology designed to fight buzzing, which greatly improves LED bulbs for wholesale. It functions in exactly the exact same manner as Leading Edge, that is, the signal is turned off twice per wave, but turned off at the end of each cycle.
Trailing-edge dimming causes significantly less buzzing because every time the wave is switched on, the wave is in the bottom strength of this cycle and slowly grows larger. Because there isn't any sharp difference between the condition first switched on, and the current gradually increases there is less prospect of a vibration being caused. Without vibration, there will be no buzzing. The technology is more widely available however, the complex electronics means that it's more costly to manufacture dimmable LED bulbs.
What Are The Advantages of Dimmable LED Bulbs
More Energy-efficient
To better satisfy the needs to reduce energy consumption, LED bulbs for wholesale are the preferred choices! Dimmable LED bulbs are incredibly energy-efficient, nearly 80%. This represents the ratio of electric energy that's transformed into light energy. Only about 20 percent of the electric energy is lost as heat energy. For normal bulbs, the opposite holds true. This places efficiency at only about 20%.
Kinder to Eyes
Users like a more uniform distribution of lighting with dimmable LED circuiting. It's less eye strain than normal lighting. Dimmable LED bulbs don't alter their colour tint unlike normal bulbs that turn yellowish when dimmed. You are likely knowledgeable about the annoying flicker average of normal bulbs. This might lead to eye strain. Additionally, it makes it tough to undertake certain actions. Dimmable LED lighting is a comfortable lighting strategy.
Better Flexibility
Combining LED bulbs with the ability to dim, is the perfect pairing of style and science. By dimming LED bulbs for wholesale, users can control their mood lighting for any spaces. This could be useful in the bathroom, where people need bright light on some occasions whereas, on others, they may wish to dim down the lighting as they are unwinding in the bath. The major benefit of dimmable LED bulbs is that they can provide both functions in one easy to install a light fixture.