ideas...
almost no money now. You can do it through a wireless DALI system and get a top end tunable white lighting system without the need for any wet trades or rewiring. It’s a game changer.” Jim insists the move to smarter lighting won’t present a challenge for installers. He said: “There are almost no differences in installing a normal LED lighting solution versus a tunable white system. “In the past, if you were doing a tunable white lighting solution it was essentially two systems in one – you’d have one at 3000K and one at 6500K. It was almost like having two light fittings in one, but that’s gone now and it’s really very simple.”
Next generation
Describing one project he worked on at a school in Dundee, Jim added: “They didn’t have the budget to change all the wiring. But using a wireless DALI system they were able to introduce controls by just changing the light fittings. No extra wiring required, no fuss and it was all done in a heartbeat.” Although the technology is only just
starting to take off in the UK, it’s already widely used across northern Europe, particularly in hospitals. Staff can use ‘sunshowers’ which drench them in 17000K light to help they stay alert through night shifts when other lighting is dimmed. Jim believes the impact of the new technology will soon be seen more widely. He added: “We’ve had LG3 and LG7 and they’re the standards at the moment, but I’d be surprised if LG7 didn’t become superseded or at least involve an element of tunable white lighting. Five years ago we were talking about LED as something that
4800K Direct sun
Biodynamic lighting uses different colour temperatures to replicate a variety of outdoor conditions. Te changing hues have been shown to affect how people feel and can have an impact on mood and productivity.
5000-6000k Day white
7000-7500K Cool white
Temperatures at the lower end of the scale give off warmer colours with orange and yellow tones, making it feel cosy and relaxing, like candlelight. Te colours get colder the further you go up the
might take over the market in the next ten or 15 years. Now almost every product we sell in the UK is LED. “It’s going to be a long time before we see a revolution as fast as that but if you’re looking for what’s going to happen next, tunable white is right up there with the next generation.”
10000K Blue sky
scale, with temperatures from around 5000K emulating outdoor light from the sun. Higher temperatures
give off a cool blue white colour, which can make people feel more awake and alert.
SETTING THE TONE
1900K Candle
2200K
High pressure sodium lamp
2700-3000K
Warm white halogen incandescent
4000-4500K Natural white metal halide
i
To find out more about tunable white lighting solutions, go to
www.sg-as.com
or you can email Jim at
jim.dawson@sglighting.co.uk
CABLEtalk FEBRUARY/MARCH 2020 39
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