LIGHTING ECONOMIST
New sources, old fittings

You’ve got access to a game-changing new efficient source of light, so the first thing you do is bung it into one of your old fittings. Dave Tilley bemoans a lack of imagination

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LIGHTING ECONOMIST
How green are your LEDs?

Dave Tilley asks whether the desperate quest for energy eficiency – and the enthusiastic adoption of LEDs – has blinded businesses to the true meaning of sustainability

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LIGHTING ECONOMIST

Are those efficient office lighting schemes you read about in magazines like Lux really achievable in the real world? Yes, says lighting economist Dave Tilley, with some caveats

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LIGHTING ECONOMIST

How do LED tubes measure up against the conventional fluorescent sources they aim to replace? Dave Tilley does the maths so you don’t have to

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LIGHTING ECONOMIST

Lighting economist Dave Tilley considers the options for retailers who will have to improve the energy performance of their lighting systems or, quite literally, pay the price

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LIGHTING ECONOMIST

Times may be tough, but a new lighting scheme rather than a simple retrofit should pay dividends beyond simply cutting your electricity bills. Dave Tilley explains

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LIGHTING ECONOMIST

Saving energy need not be a complicated affair, and in the current economic climate, the time is right to consider the simplest of energy-efficient retrofits. Dave Tilly does the sums

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LIGHTING ECONOMIST

Lighting Economist Dave Tilley turns his attention to a specific retrofit application this issue – warehouses. How do the alternatives to the ubiquitous HID low bays stack up?

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LIGHTING ECONOMIST

Lux magazine introduces the Lighting Economist, Dave Tilley. His job is to work out the maths of lighting and energy – so you don’t have to. This month Dave solves a common problem: what’s the most cost-effective retrofit for low voltage halogen?

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