CCT LED-spotlights

CCT ADJUSTABLE OR YELLOW ADJUSTABLE LED SPOTLETS FOR SIGN CREATION

One of the best benefits of colour temperature control is the ability to vary the mood. For active daytime, the spot can be set to a cool white light reminiscent of a clear day, and for evening, a warm white light reminiscent of the glow of a fireplace or sunset. There is a growing body of research on the impact of lighting on human biological rhythms and health benefits, which, on the basis of current evidence, suggests that in addition to comfort, the colour temperature of lights can also influence factors such as alertness. 

CCT - colour temperature control range

Almost all our spot models in our range also have a colour temperature adjustable version. We call them CCT (colour colleration temperature), or CCT spots. Their colour temperature, or Kelvin, can be set to three different settings (warm, neutral and cold white). With a suitable control device, this can also be done continuously (between approx. 2500K and 6500K). CCT spots are not only dimmable, but also have a very high colour rendering index. The colour rendering index measures how natural the colours appear in the light of the luminaire. A poor colour rendering index will, for example, give a room a dirty yellow feel. 

Why choose a spotlight with colour temperature control?

A colour-temperature adjustable spotlight allows you to change the interior to suit your mood, or for example to match the rhythm of the human chirp. In a chirp rhythm, the temperature and brightness of the light changes to mimic sunlight, giving a cooler light in the morning and a warmer light in the evening, for example. This supports the natural hormonal function of humans and enhances the natural circadian rhythm of the human day. Read more here

Award-winning expertise

The product line developed and manufactured by LedStore has won several international awards for its functionality, elegance and quality. We test and develop our own products to ensure they are of high quality and incorporate the latest technologies. 

CCT spots fit everywhere

The dimmable luminaires are suitable for all rooms in the home, both wet and dry, and also outdoors. Directional CCT spots are well suited to sloping ceiling surfaces, while those with a solid body are not affected by dampness in wet areas.

How does colour temperature control work?

Colour temperature control is technically done by adjusting the voltage between the cold and warm LED circuit. There are 2 different ways to adjust the colour temperature in spots.

BASIC way

The spots are supplied with a standard transformer (included in the price). The standard transformer is TRIAC dimmable. There is a 3-position switch on the side or on the wire of the transformer to select Cold, Neutral, or Warm as the color of the light. You can change the transformer setting by taking the fixture down and disconnecting it from the power supply. Not for everyday changes. The spot transformer fits through the spot mounting hole. 

FREE way

In this installation method, each spot is purchased without its own transformer, and the price of the transformer is credited. The spots are connected to a group transformer in parallel or series, allowing the entire group of spots to be controlled from a single source.

The group transformer can be placed further away (+10m) in which case it usually also requires a service hatch.

Each spot has 3 wires (+, cold and warm) which are connected to the transformer. You can use your own 3-pole wiring, or use LedStore's ready-made wiring harness with pull-outs and splitters. 

FREE control benefits

You can choose any temperature and brightness level to your liking.Free control is done with a button or from the app you use.  

Buttons can be either freely programmable or simple one-group buttons that let you adjust the color temperature and brightness of the light in the fixture.

Alongside the buttons, an app can be used, which has a number of advantages,

• Automations (motion sensors, clock, etc.)
.
• Scenet (certain lights are adjusted as a group)
• Lights imitate the sun's cycle (circadian rhythm)

There are differences in the applications and we are happy to tell you more about them. Operational buttons require an application to work.

FREE control techniques

Zigbee CCT

A wireless and reliable technology where only mains power is supplied to each transformer. Each Zigbee transformer also acts as a network amplifier, extending the connection path between buttons and devices. The network works in two directions and the signal always takes the shortest route to the terminal. If a device is removed, Zigbee will automatically repair the network and find a new route. The buttons have a range of 20 metres to the nearest device.

The control buttons are freely positionable, as the button talks wirelessly to the transformer. The button also uses a battery so no electrical wiring is required, and since power is only consumed when the button is used it will last for several years (CR2032). The buttons are 55x55mm wide and fit for example EXXACT, INTRO, and similar frame sets. You can use more than one button to control the same group and change your mind freely.

In addition to the buttons, you can control groups of luminaires with the app by purchasing a Zigbee 3.0 Hub. There are several manufacturers of Hubs, including:

• Philips HUE
• VaLO WIFI Zigbee HUB
• Lild (silvercrest)
• Conbee2 USB
• IKEA Trådfri
• Homey

All of the above are great for lighting control, but there are functional differences. Some only allow you to control lights, while others allow you to connect various sensors. If you already have one that works, you can continue to use it without worry.

DALI and DALI2

DALI is a wired control technology with a long history. In addition to mains power, DALI requires a 2-pole bus cable for each control device. Therefore, DALI sites often run 5x1.5mm3 cable everywhere, so that when the power is wired, a bus cable is also provided, as 2 wires are reserved for the bus.

With DALI, everything is controlled by the DALI Master, which is the heart of the system. Each DALI device is connected to a bus from the DALI Master, which is like a blood vessel. The information sent by the devices travels along it all the time, in both directions. 

The newer DALI2 allows CCT, RGB and RGB+CCT controls with a single DALI address, which is a major advantage as it makes DALI programming much easier. 

DALI programming is more cumbersome than Zigbee programming, but it has its supporters and is used in high-value locations, hotels, etc. The physical cable connects all devices and is therefore reliable in its operation. Buttons are also usually powered by the DALI bus cable.

As with Zigbee, it makes sense to use group transformers with DALI. Of course, each luminaire can also be supplied with its own transformer, allowing individual luminaires to be controlled.