Lumistrips LED Lighting Blog

The Lumistrips LumiFlex3098+ LED strips uses true natural spectrum LEDs from Seoul Semiconductor’s SunLike Series with TRI-R technology, to emit light that closely matches the spectrum of natural sunlight. Full spectrum light is made possible by using a new LED architecture, with a purple emitter in combination with a red, green, and blue (RGB) phosphor mix, unlike conventional white LED that use a blue emitter and yellow phosphor. 

This new approach to full spectrum LED lighting has the effect of accurate rendering of colors, almost as daylight, with the added benefit of increased awareness of contrast and texture. 

With the unique quality of the light spectrum, SunLike LED fixtures are perfect for lighting art, such as paintings, frescoes, mosaics, sculptures and many other exhibits, both in museums and private residences.

Lumistrips Lumiflex3098+ SunLike LEDs reveal more color and texture for exquisite works of art, in private collection

The uniform spectral power distribution enabled by a three-phosphor mix of the Lumistrips Lumiflex3098+ SunLike LEDs now naturally light the exquisite works of art such as statues, pottery and art glass in a private collection, showcased in a residential home in Europe. The LEDs now ensuring that residence and guests will fully experience the item's color and texture.

A Cove light is a line of light can obtained via a LED strip hidden from view inside a cove in the wall or ceiling that illuminates an adjacent surface. Light is reflected from this surface into the space that has to be illuminated. That is why lines of light are commonly known as cove or indirect lighting.

Cove lighting is beneficial trend to design lighting, with focus on human nature and how natural light behaves. It is today widely adopted, with lines of light as a principal way to illuminate interiors.

The allure is the similarity with natural light. With the proper light source used, we could imagine that the cove is actually a hidden window to the outside from where sunlight flows in.

Lets explore how we can have the best results with cove lighting

Good design of your home lighting will ensure that the right amount of light can be switched on conveniently and will light where and when it is needed. A proper home lighting should avoid over-lit areas and give control and flexibility to create lighting effects for different situations. Well-designed lighting will be inherently easier to use and more likely be energy-efficient.

The recommended approach to home lighting is to use three lighting levels or layers: general lighting, task lighting and accent lighting. By combining these three levels, the recommended lighting level for each room or activity can be obtained, as below: 

The three levels of lighting

General lighting should ensure a sufficient minimum level of light in the room. There are many LED light sources that can be used for this purpose: LED modules, strips, luminaries or spotlights. Decide on the desired illuminance level (lux). In living rooms and bedrooms give a certain degree of flexibility (through control settings/dimmers) so...

Casambi, a pioneer in Bluetooth Low Energy (BLE) wireless lighting control, has teamed up with LED technology specialist Seoul Semiconductor to offer lighting designers precise control of LED strips, modules and luminaires that use the new SunLike technology that matches the spectrum of sunlight. For the first time, this development puts true human-centered lighting in the hands of designers.

Users can use Casambi's Bluetooth-based wireless control system and app with products that include SunLike series LEDs to precisely adjust the light level, knowing that the spectrum reflects real sunlight, a key ingredient for Human-centric lighting

Human-centric lighting describes lighting designed to work with the natural rhythms of the human body. It is based on the well-known fact that the human eye recognizes the presence of a certain wavelength of blue light in the spectrum of sunlight and derives the time of day from this. In this way, light helps to regulate our sleep-wake cycles and other physical rhythms and has a significant impact on our mood and well-being.

Human-centered lighting takes advantage of this effect by adjusting its brightness and color temperature during the day to mimic natural light.

Casambi allows control of the lights through a timer or a variety of presence/movement sensors and daylight sensors. It can control lights that change colour temperature over a very wide range, and designers have the freedom to configure dimming and create scenes or animations for the application.

Natural light is white light which is not static but a dynamic source with changing tone and brightness, as a day goes by and seasons change. The tone of white light is called color temperature and is express in degrees Kelvin (K).

The color temperature of daylight changes during the day, from 2000K at sunrise and sunset to 5500-6500K at noon. In the shade in can even go to 8000-10000K.

Artificial light sources are available with all relevant color temperatures of sunlight. Some of them, such as incandescent lamps, can be produced with only one color temperature: 2700K. LEDs are light sources that can be produced with all color temperatures from 2000K to 10000K, while the most are found in the 2700-6500K range.

The CRI is a number quantification of the ability of the artificial source of reproducing colors, compared with reference standard illuminant modeled after daylight.

It was introduced by the International Commission on Illumination (CIE) in 1974, because of the wide variation in the ability to reproduce colors with the white light emitted by the many types of gas-lamps then on the market. Today, with over 40 years of use, the CRI index is firmly rooted in the lighting industry and among professionals.

From 2000s onward, LED technology has exposed the limits of the CRI index test method.

LED is the first lighting source that can be used for every application and have the full range of performance and quality level, including the ability to accurately reproduce colors. This comes from the fact that LEDs are built directly into fixtures, lamps and strips, as in the example image below:

The illuminated ceiling or stretch ceiling is very interesting trend in interior lighting. By using a translucent material many square meters in size with a backlighting system, a diffuse, even and relaxing illumination of interiors can be created. The main advantage of this type of lighting is the absence of glare, as the light sources are distributed over a large area and hidden behind the material.

The backlight source is usually low or medium brightness LEDs (5 to 50 lumens) mounted on strips or modules. Since the illuminated surface has a large area, such low power illumination is the best choice.

Illuminated stretch ceilings can have personalized shapes and even feature translucent images. They can therefore influence the overall design of a room much more than other lighting fixtures. From a lighting design perspective, uniform light should be supplemented by spotlights or lamps that can draw attention to specific areas or objects.

The proper design and installation of a luminous ceiling has a number of unique challenges that we will address in this article.

Human Centric Lighting is lighting specifically designed to produce a beneficial physiological and/or psychological effect upon humans. White LED lighting solutions are adapting the light color and intensity during the course of the day, so indoor lighting is similar to that outside. These products are named tunable white LED lighting solutions.

Human Centric Lighting (HCL) supports human health, well-being and performance by implementing the light system according to the desired visual, emotional and especially biological effects of light.

The main focus of Human Centric Lighting is to be focused on people's needs for their living, leisure and working environment, by taking in account the effects of natural light, a dynamic source with changing tone and brightness, as a day goes by and seasons change. 

To implement an adequate Human Centric Lighting a combination of white LED light sources is used, usually warm white (2700K) and cold white (6500K). This is Tunable White lighting.

By adjusting the intensity of each, bright or dim white light with a hue between 2700K and 6500K can be obtained. 

Lines of light are a new trend in lighting design and are usually made with an LED strip inside an aluminum profile that has a translucent white cover. The attraction of using such a linear light fixture is that it can be personalized. You can choose as you desire the pattern, place of installation, length (up to many meters), geometric shape or a combination of these elements.  

Because of their way of construction lines of light are a type of direct lighting. Compared with coves that are indirect lighting, lines of light are more energy efficient but can have greatly increased glare. For this reason lines of light should be designed with care and almost always be dimmable. 

Let's see how we can achieve the best results with lines of light.