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Mellow Lighting V The next generation

When the Mellow Light fl uorescent fi tting burst on to the cave-like Cat 2 offi ce environment in 1989, it was nothing short of a lighting revolution. Not a louvre in sight and, as its name suggested, it produced a soft diffuse glow and a lighter ceiling effect.

‘It’s hard to imagine a change as big as the move from the louvre to Mellow Light,’ says Zumtobel’s Marketing Director Steve Shackleton. ‘It was enormous – a 180-degree turn in the opposite direction. It took time for acceptance to grow.’

But grow it did. Like any successful product, it spawned a raft of rip-offs, luminaires that mimicked the look but invariably lacked the performance. Having now reached its fi fth incarnation in the form of the new MLV, the Mellow Light is fi rmly established as an integral part of Zumtobel’s portfolio.

So how do you reinvent a classic? How do you make a nod to its pedigree while still moving it forward? The answer has been both aesthetic and technical changes, but it is the latter which is the most striking. This new breed of fi tting is 20 per cent more effi cient than its predecessor, the MLIV, launched in 2001.

With a light output ratio of 87 per cent, the MLV EM 155 delivers 65 luminaire lumens per circuit watt. That exceeds the current Part L stipulation of 45lm by 50 per cent and, according to

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CIBSE Journal April 2010

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