Circadian Lighting

SCIENTISTS say they have identified the exact wavelength of light which controls the sleep-wake cycle of humans.  A paper, published in the Journal of Biological Rhythms today, reveals that 477 nanometres is the most potent light to control people’s circadian rhythm.  The researchers have dubbed it ‘Circadian Blue’. The study has major implications for how...
Healthcare

THE CORONAVIRUS crisis is leading to an unprecedented interest in the power of passive ultraviolet lighting to disinfect workplaces. In particular, attention is centring on the use of UV-C radiation, which has a wavelength of between 200 and 280 nanometers (nm) and is invisible to the human eye.  At the specific wavelength of 253.7 nm...
Healthcare

ULTRA-VIOLET light can kill the coronavirus, scientists at China’s National Health Commission have confirmed. They say the virus is sensitive to UV light and have verified that certain exposures will kill it. The NHC’s latest advice says indoor rooms can be disinfected with UV light of over 1.5W/m3 used for half an hour. The exposure...
Healthcare

A HIGH-BAY light which can kill 99 per cent of viruses and bacteria and remove toxic gasses in the workplace has been unveiled.  The Air-Lume, developed by UK-based Trinity Lighting, combines powerful active air purification with high-specification LED lighting and is designed to tap into the booming market for wellbeing in the workplace. It works...
News

The use of blue light doesn’t deter intravenous drug use and may be making matters worse, a UK addiction charity has warned. The Transform Drug Policy Foundation is cautioning that the use of the coloured LEDs in toilets and other locations – designed to make it harder for users to find veins – doesn’t act...