Dimming characteristics website.
As we move from incandescent and fluorescent lamps to LED light sources (device light sources), various manufacturers are recommending various dimming methods. From above, we have organized the most common dimming methods according to type, functionality, cost, wiring, equipment used, etc. We will continue to add and update this list as new dimming methods are released. Please check with each manufacturer for further details.
Phase Dimming
This is a common method used to control the power of lighting fixtures, etc. By controlling the power supply, the brightness of the light can be adjusted. In addition to adjusting the brightness of the light, it is also possible to adjust the power consumption. The dimming range is 100% to 5% (down to 1% depending on the manufacturer). Below 5%, the light will be turned off and noise may occur. Basically, it is the same system as incandescent lamps. Only dimming is possible. *Compatible with all manufacturers.
Reverse phase dimming
It is a method for adjusting the brightness of lighting fixtures and electrical equipment.In the phase control method, power is controlled only in the positive half cycle (upper half of the waveform), but inverse phase dimming, the negative half cycle (lower half of the waveform) is also used to dim the light. In appearance and system, it is no different from a phase dimmer. The difference is in the circuitry inside the dimmer. The main features are that it has less flickering than phase control, and the dimming is more natural with less noise. Only dimming is supported. *Compatible with all manufacturers.
Pulse Width Modulation Dimming
When dimming an LED lighting fixture using the PWM dimming method, the power supplied to the LED is controlled to change the brightness. The PWM method is widely adopted as it achieves efficient and smooth dimming. To put it simply, PWM (Pulse Width Modulation) dimming is a method of controlling the brightness of lighting. It adjusts the power by changing the width of the pulse (a short electrical signal). The pulse is controlled by a signal line through a dimmer, and when wiring, a signal line is connected between the dimmer and the power supply in addition to the power line. Compared to phase wiring, this generates a signal line. Only dimming is supported. *Compatible with all manufacturers
Wireless Light Control System
This is a wireless dimming control system that uses wireless signals without the need for signal wires. As no signal wires are required, there is flexibility in the layout of lighting control. It is also easy to add new lighting fixtures or expand the system with repeaters. Installation is quick and easy as no wiring work is required. Furthermore, lighting fixtures can be easily controlled individually using devices such as smartphones and remote controls. In addition, it can be linked with smart home platforms by lighting manufacturers, allowing the creation of a more integrated lighting control system. It is compatible with fixtures that support dimming and color adjustment. *Compatible with general and specialized manufacturers
Digital Addressable Lighting Interface
Digitally addressable lighting control interface. DALI dimming is a global standard for commercial and residential lighting systems as one of the standard methods of lighting control. Each lighting device can be individually addressed and controlled. This allows the brightness and operation of each lighting fixture to be controlled individually. DALI uses digital signals to control lighting. This allows advanced dimming functions and other lighting control functions (timers, scene settings, etc.). DALI is also flexible and scalable. It is relatively easy to add new lighting fixtures to the system or change existing fixtures. It is mainly used in commercial facilities such as office buildings, mainly hotels, educational institutions such as hospitals and medical centers, public facilities and transportation facilities. In addition to lighting control, it can be combined with lighting control to control and monitor other building management functions such as air conditioning and security systems, and integrate various devices and systems in the home to build a smart home ecosystem. The DALI communication protocol is used to control the display and content of digital signage. *Supports general and specialized manufacturers
Learn about "DALI" through videos: Kanda Tsushinki Co., Ltd. website
Synchronized color matching
By changing the color temperature of multiple lighting fixtures simultaneously, a consistent color tone is maintained throughout the space. This harmonizes the lighting throughout the room and improves visual comfort. There are types that allow easy dimming and color adjustment with a single dimmer switch, and types that allow multiple lights to be dimmed and adjusted with a living room light controller. This system changes the light color to incandescent white when the brightness is low within the "Kruythov* comfort zone," the range of light color and brightness that people find comfortable, and changes the light color to daylight white when the brightness is high. As for the fixtures, color-adjustable dimming fixtures can be used in combination with a controller that supports the CU start-up method. * Compatible manufacturers: Panasonic
3-way switch compatible with color and dimming
A signal conversion interface is added to the compatible equipment, and the system combines a light controller and a signal conversion interface to control the color and brightness of the light using a wall switch. The brightness can be adjusted by adjusting each color temperature. However, a signal conversion interface and signal are required for each fixture. It is mainly 2A. * Compatible manufacturers: Panasonic
Wall switch specification Color adjustment Dimming
This is a wall switch that allows you to easily turn on/off and adjust the color and brightness with a controller. The main capacity is 2A. *Compatible manufacturers: ODELIC, KOIZUMI Lighting