Posts Tagged ‘color rendering index’

Stop Flirting & Commit : Rules of Engagement With Colour

Wednesday, January 25th, 2012

Source: those3chicks


Stop Flirting & Commit : Rules of Engagement With Colour


Just as with any budding attraction, should you bring it home with you, you might be surprised how it looks like in a different light. Colours which look great on the colour chart under fluorescent lighting in the paint store will look much different at home in a sunny room or lit by incandescent lighting. Tungsten bulbs give a slightly yellow light; halogen gives white light, while some fluorescent bulbs can give flat, cold light. All these lights can all affect how the colour looks. Your best bet is full spectrum lighting, which mimics daylight, to show a colour at its’ best.

Read more.


Comments: In this long(ish) post, the authors advise on ways in to include colour in your home design choices. In terms of making your colour decisions, the best piece of advice they give, is to make sure you’re looking at it under the right light.



Lights for Tulasi

Monday, April 26th, 2010

From time to time we are checking the internet for what people say about Viva-Lite. That way we can learn a lot how our customers perceive our brand, products and services.

For example see this feedback on and how well Viva-Lite worked for growing Tulsi:

“We planted Tulasi at home last summer. When she was very little we bought her a 26 W Viva-lite full-spectrum bulb. She was doing well with it. She grew very strong stalk and large, green leaves. Recently we felt she needs more light. We arranged two 36 W fluorescent Viva-lite tubes for her. In Scandinavia there is hardly any natural light at this time of the year! (more…)

The Colour Rendering Index (CRI)

Monday, February 15th, 2010

We felt it is high time to write a brief blog article about the so-called “colour rendering index“, or CRI as its abbreviation is called. The CRI is often quoted in “Ra” (general color rendering index).


What does Wikipedia have to say about the CRI: “The color rendering index (CRI) (sometimes called color rendition index), is a quantitative measure of the ability of a light source to reproduce the colors of various objects faithfully in comparison with an ideal or natural light source. Light sources with a high CRI are desirable in color-critical applications such as photography and cinematography. It is defined by the International Commission on Illumination as follows: ‘Color rendering: Effect of an illuminant on the color appearance of objects by conscious or subconscious comparison with their color appearance under a reference illuminant’.”


As this sounds a wee bit complicated, we’ve prepared an article which (hopefully) explains a bit mor simple what the CRI is and does. (more…)