Archive for October, 2009

Creating Mood and Drama With Light

Monday, October 26th, 2009

The phrase “mood lighting” may call to mind romantic candlelight and a cozy fire flickering in the hearth, but really, almost all types of lighting have an impact on our moods. Using general ambient lighting to brighten a room on a cloudy day can contribute to a positive mood, just as dimming the lights in the evening can help us wind down and relax. Festive lighting can contribute to a party spirit, and utilitarian task lighting can help put us in the mood to get work done.

The keys to successful mood lighting are flexibility and control. Adding lighting in layers, utilizing three-way lamps, installing dimmer switches and having separate controls for all of your lighting sources are effective ways to achieve both. Think beyond the dimmer switch if you plan to use energy efficient lighting. While a dimmer can change the color temperature of an incandescent bulb, all it can do to an LED or CFL bulb is reduce the output. A cooler light, when dimmed, can cast light that’s as gray and depressing as a cloudy day. Opt for a warmer bulb in lighting fixtures that you plan to dim after dark.

Be selective about which lighting layers you use to create mood. Having every light on at once, at the same intensity, is not only unattractive, but also an energy drain. Try combining layers at different levels and combinations to achieve the right atmosphere. When daylight is dominant, leave accent lighting turned off, since it won’t be seen at its full impact. At dusk, turning just the ambient layer up to its highest intensity can extend the feeling of daylight and help our eyes transition from natural to artificial lighting. After the sun sets, turning down the ambient light and turning up the accent layer can create a warm, relaxed atmosphere that’s perfect for transitioning to bedtime.

More dramatic moods can be achieved by manipulating the contrast between light and shadow. Something as simple as switching from uplighting to downlighting can have a major impact on the look and feel of a room just by changing the shadows. Combinations of light add more drama and interest than uniform lighting – consider a hallway lit with narrow-beamed recessed downlights, creating pools of light that lead to a dramatically backlit object at the end of the hall.

Backlighting a sculpture or a patterned screen has a dramatically different effect than lighting it from the front, while front-lighting an interestingly shaped object casts interesting shadows on the wall behind it. The key to dramatic lighting is to downplay the ambient lighting and play up accent lights – and to not be afraid to play with shadow and contrast.

Defining Features With Light

Monday, October 19th, 2009

Features With LightLast week we showed you that lighting can be used to create interest and add space to a room. This week, we bring you some how-to tips to add definition and accentuate the details of your homes interior.

In homes with architectural details such as molding, columns, archways, built-in bookshelves or display nooks, light can highlight these features and bring out the character of your home. Uplighting is usually best for this. Use a low-glare, narrow-beam halogen or warm white LED light with a 10-degree spread. The source should be set deep into the floor or otherwise concealed to prevent glare and keep the fixture itself from drawing attention. It should also be set close to the feature so it casts a pattern of light and shadow over horizontal elements. Try this uplighting effect on either side of your fireplace to create a warm glow and add emphasis even when the fire isn’t lit.

In more contemporary homes without a lot of architectural detail, something as simple as a wash of light over a wall to bring out texture or highlight flaws in a smooth surface can add interest provide your home with its own character. Create this effect with a white xenon recessed downlight or a concealed LED strip located close and shining down over the wall. For a more even wash over the entire wall, rather than emphasizing the top, try a recessed directional downlight located further out from the wall with a frosted lens to dilute and soften the effect. A wash can also be achieved with a series of uplights on the floor, positioned close to the wall and grazing the surface with light.

No matter what type of home you have, lighting staircases, bookshelves and niches or recesses is a great way to bring dead space to life while adding accent lighting and elevating a room’s impact. On staircases, set recessed uplights into each step to create a low-level wash of light going up the front of the stairs, and also along the floorboards on the underside of the staircase to widen and enliven the space. For display nooks and bookcases, install undercabinet lights to highlight objects from above, or try mini surface-mounted lights to accentuate displays by either spotlighting them from the front, or mount them behind objects to cast them in silhouette. Linear shelf lights, flexible picture lights, and colored string lights are also useful tools for illuminating these areas and highlighting objects displayed within.

By now you should be getting a picture of the versatility of light and the many ways it can be used not just to illuminate, but also to enhance your décor. Next week we’ll broaden the picture by looking at even more ways light can be used to create contrast and drama.

Enhancing Space With Light

Tuesday, October 13th, 2009

As the air grows crisper and the night grows longer, we’re seeking the cozy comfort of the well-lit indoors. It’s a good time to explore the decorative functions of light. I’m not talking about the pretty sparkle of a crystal chandelier or the artistic statement of a Tiffany lamp; I’m referring instead to the optical illusions and area-defining effects that light itself can achieve.

Light can change a rooms proportions, creating scale and volume to make it feel bigger, or visually shrinking it to a smaller, more intimate space. Strategically placed uplighting can wash the walls with light and reflect off of the ceiling to create a soft, diffused effect that mimics natural light, creating a roomy, airy feel. By illuminating opposite walls and leaving corresponding walls unlit, you can add the illusion of length to a room. Lighting something beyond the room, such as a patio or an adjoining room, can also trick the eye into perceiving more space than is actually contained within the room, adding to the feeling of openness.

Light can define areas and link spaces. In a loft apartment, for example, using track lighting to create pools of light and shadow of varying intensities can define zones and provide a feeling of distinct, separate areas for lounging, dining and sleeping. Conversely, using similar intensities of light in two separate but joined rooms, such as a living room and den, can draw the eye beyond the room’s barrier and create the illusion of a single large space.

Light can create focus. Lighting focal points in a room, such as a painting, an architectural feature or a piece of designer furniture, is an easy way to create interest. It can be easy to get carried away, though, and create so many “focal” points that nothing stands out. A simple way to avoid this is, when planning the room’s layout, use a yellow highlighter or sticky note to denote where your lighting focal points will be. If you end up with too much yellow, then you’ll know that you need to be more discriminating about which aspects of the room to bring into focus.

When creating focal lighting, the point is to make the object being lit brighter than its surroundings in order to draw the eye; so the light source will need to be hidden so that it doesn’t become the focal point, and it will need to be controlled separately from the room’s primary light source so that it will remain bright when the other lights are dimmed.

This is just a small sampling of the effects that lighting can have on a space. In the coming weeks, we’ll explore other ways to decorate, set mood and create drama with light.

Lighting 101: Taking Your Lighting’s Color Temperature

Tuesday, October 6th, 2009

You might know that the phrase “cool light” doesn’t mean that it’s safe to touch the light bulb. But what, exactly, does it mean, and what does it have to do with your home lighting plan? Simply put, lighting has a color temperature, which refers to the amount of white/blue or yellow/red contained in the light.

This temperature is measured in degrees of Kelvin. Unlike Fahrenheit or Celsius, which both go from cold to hot on an ascending scale, Kelvin ascends from warm to cool. This isn’t the only thing about it that seems counter-intuitive. The sun, for instance, is the hottest source of light that there is, and yet daylight – sunlight mixed with the color of the sky – registers as cool on the Kelvin scale.

It’s important to know the color temperature of your lighting, because it affects how you see your environment. Cool, blue-white lighting, such as daylight or full-spectrum fluorescent, shows the truest colors. It’s the best light for displaying artwork, flowers and plants, and for making sure you don’t accidentally pair navy blue socks with black trousers. It’s terrible for displaying people, however, due to its tendency to sallow out skin tone and highlight flaws. Warmer lights containing more yellows and ambers, such as incandescents, are far more flattering, which makes them ideal for rooms that will be used for entertaining.

So what happens if you want to entertain in the same room as your art collection? Fortunately, there is a spectrum in between cool white and warm yellow, somewhere along which lies a compromise that will cast both your guests and your paintings in a good light. Below is a list of common light sources and their place on the Kelvin scale. Remember, the higher the degrees of Kelvin, or “K”, the cooler and whiter the light.

  • Candlelight – 1,000 K
  • Standard household light bulbs – 2,800 K
  • Halogen – 3,000 K
  • Color-corrected fluorescent – 3,500 – 4,100 K
  • Full-spectrum fluorescent – 5,000 K
  • Daylight – 6,250 KWhat about the alternative light bulbs such as CFL, LED and Xenon that we’ve discussed here? Thanks to color-correcting filters, they come in both warm and cool colors. When selecting them, check the package for the number of Kelvins and compare that to the list above to see what type of light it will produce. If the Kelvins aren’t listed, then a good rule of thumb is to remember that “warm white” on the label generally refers to the type of light a standard household light bulb produces, while “cool white” will produce something closer to natural daylight.