Did you know this about LED Spotlights and Downlights?
Some LED downlights can have a sharp edge to the beam of light which means, if you don’t overlap the spread, the result won’t be smooth. By choosing ‘soft edge’ LED downlights you’ll avoid this jarring effect.
LED Colour Temperature
You need to choose the Colour Temperature of the light emitted. Some manufacturers will class Warm White as 3000K but this is on the cool side. Although they can work well in bathrooms and kitchens, it’s better to go for 2700K in living areas.
The light given out from the luminaire or lamp is also given a CRI index which indicates how true colours are under their light. For example, from 1 which is monochrome, going up to 100 which is sunlight. Fabrics, paint colours, food and even your face will look much better the closer to 100 you go.
How the downlights dim will be affected by a) the driver if they are dedicated downlights and b) the lamp used if they take retrofit bulbs. And then there’s the dimmer module itself. They need to be compatible to ensure smooth, silent dimming.
You can now select LEDs that will ‘dim to warm’ which will not only enhance your experience in the evenings but could also benefit your sleep. (See my article on How Lighting Affects Sleep).
Tips when using LED Downlights
Try and avoid glare from downlights. This is best achieved by ensuring that the light source is set up from the surface. A dark baffle will absorb the glare even more. A golden baffle will make the light warmer.
Don’t place downlights in grids when designing home lighting. This should be left to offices and commercial situations where a blanket level of light is required. In homes the downlights should only be placed where they are needed for the greatest effect.
If you select downlights that don’t blend into the ceiling your eye will automatically go upwards. You don’t want people to notice the finish of your downlights so try and avoid contrasting colour trims to your ceiling.
Even though some downlights can angle well, sometimes you’ll need a wider spread of light to feature a painting, for example. In this case surface mounted spotlights can work better. Again, go for a finish that will blend in with your ceiling.
Choosing the right beam angles of light emitted from the downlights will have an influence on the overall illumination. Wide beams work well for overall illumination whereas narrow beams will punch more lights down onto a kitchen island, for example.
Downlights will need to be fire rated where there’s living accommodation above (if the fire barrier has been perforated). There are fittings out these days that are fire rated without the fire canister and even LED GU10 lamps that are fire rated in their own right.
Downlights come in various sizes and there are some punchy little LEDs on the market that are excellent for including in an atmospheric circuit, for example washing down in front of a fridge in the kitchen or opening up dark areas along a corridor. You don’t always need a large full powered downlight, even dimmed. These micro downlights give a wider band of effects available.
Lighting technology seems to progress in leaps and bounds so it’s always good to keep up with what’s on the market. We do!