Cheap LEDs: buyer beware

Cheap LEDs: buyer beware

Potentially fatal LED lamps have been seized at UK borders as authorities try to protect consumers from hazardous products. Emma-Lily Pendleton reports on the real cost of cheap LEDs.

Three ways to light a lift lobby

Three ways to light a lift lobby

Lift lobbies are one of the key public areas in hotels, and it’s worth making a good impression. Alan Tulla explains how.

OLEDs: Too little, too late

OLEDs: Too little, too late

It's a mixed bag for organic light-emitting diodes. They're improving and prices are dropping, but LEDs will stay ahead of them until the next big thing comes along, according to a new research note.

Windowless workers are losing sleep

Windowless workers are losing sleep

More fodder for those who believe that exposure to the wrong kind of light undermines sleep: Employees who work in windowless areas rest poorly at night compared to their colleagues with a view.

Office workers 'want bright light they can control'

Office workers 'want bright light they can control'

Initial findings of research by Zumtobel and the Fraunhofer Institute for Industrial Engineering have shown that office workers like bright light sources they can control, with variable colour temperature output.