Lux magazine doesn’t just recommend products – we take ‘em apart and put ‘em back together. And then, just to make sure, we have them independently tested in the UK’s most rigorous lighting labs.

Selecting LED downlights is real headache. There’s the claims and counterclaims – not to mention spec sheets that make the plot from Lost look like a model of clarity and consistency.

So to help specifiers sort the wheat from the chaff, we’ve taken the most popular brands of LED downlights and given them a Lux MOT. We examined the quality of the light, the standard of engineering – and then we tested them for output and efficacy at the industry’s most respected laboratories – 42 Partners in Wolverhampton.

They checked all our downlights on state-of-the-art equipment using best-practice procedures.


When they’ve come through all that, the Lux expert panel of engineers and LED experts is happy to stick the ‘Lux recommendation’ label on them.


So if we say the downlights are Part L2 compliant, that’s because we’ve tested them to make sure they deliver at least 55 lumens per circuit watt – an extremely high bar for LED technology to reach.

Specifying LED lamps and luminaires is a notorious minefield so it’s worth remembering a few ground rules. Stick to trusted brands – they have more to lose if the products don’t deliver. Also, if you go on the Internet to find a particular luminaire spec – such as the colour rendering, efficacy, photometry or colour temperature – and it’s not easy to find, that’s because the manufacturer doesn’t want you to find it.

But don’t believe the sceptics: LED luminaires – at their best – are more than a match for traditional fittings. Just make your selection with care.

John Cullen Polestar

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