Are LEDs messing with your mind?
Lux's technical editor Alan Tulla looks at three lighting techniques to make shop displays stand out.
Photometry expert Dr Gareth John tests the latest innovation from blue LED inventor Shuji Nakamura: an MR16 with excellent colour rendering.
LED Eco Lights has launched an innovative range of filament-style retrofit LED lamps. Designed to offer a timeless vintage feel, the new Bright Goods products include a wide selection of globes, candles, pear shaped and traditional GLS bulbs to simplify the creation of a desired ambience or atmosphere. All lamps in the Bright Goods range are dimmable and provide a high-performance lifespan of 30,000 hours which is around ten times that of a conventional filament bulb.
The Germans call it Gemütlichkeit – cosiness. That’s what this restaurant in Plauen, Germany, has achieved thanks to LED lamps from local company Vosla. They look like incandescent, but use just a tenth of the energy. Vosla’s managing director, a regular at the restaurant, had been trying to persuade the owner for years to switch to LED, but he was never impressed by the ‘cold light’ and ‘futuristic heatsinks’ of LED lamps. But when they saw Vosla’s latest product, with a colour temperature of 2700K and a CRI of more than 90, they decided to make the switch. They kept the Gemütlichkeit, saved piles of money on electricity and maintenance.
Verbatim’s candle lamps offer exceptional colour quality, thanks to the VxRGB technology developed by parent company Mitsubishi Chemical Corporation. This is based on a violet LED and a special mix of phosphors, which produce a fuller colour spectrum than your average LED lamp. Alongside the standard version, there’s one with an extra-warm colour temperature of 1650K, one that flickers like a real candle, and one that warms as it dims, from 2400K to 1900K.
A new range of clear LED lamps, including candles and globes. These lamps have the same dimensions as conventional incandescent bulbs. All are dimmable and with a very warm colour temperature of 2200K. They’ve been used in venues including the Netherlands Institute for War Documentation, housed in a 19th century Amsterdam canal house, and the Van Loon Museum, another canal house conserved in the style of the 18th century.
UKLED was one of the first companies making LED candles that look like this, with the old-fashioned ‘filament’ style appearance. The LED candles have a warm colour temperature of 2750K and use just one to three watts of power. Lux was very impressed with them when we reviewed a sample last year.
Megaman’s new LED lamps don’t just look like incandescent, they behave like it. Dim them down below 100 per cent, and instead of keeping the same colour temperature, as most LEDs do, they become warmer in colour, just like incandescent. Take them from 100 to 10 per cent and the colour temperature shifts from an already warm 2800K to a very cosy 1800K. LED lamps with the ‘Dim to Warm’ technology include candles, classics, MR16s, AR111s and integrated LED downlights, all of which offer a long life of up to 35,000 hours and high lumen maintenance.
Yes, it looks like a filament lamp, but it’s not. Believe it or not, it’s actually a super-narrow fluorescent tube, in a bulb, that looks similar, but uses just an eighth of the energy. The technology behind the Factorylux bulb was developed by a Dutch lighting company called NDF, set up by a group of former Philips employees. In the UK, Urban Cottage Industries has been selling the original pear-shaped Eco-Filament lamp since last year, and now sells more of them than real filament lamps.
With a warm colour temperature of 2700K, Philips’ dimmable Master LED candle lamps are ideal for general and decorative lighting in the hospitality industry. Drawing upon inputs from chandelier makers and designed to enhance the aesthetic appeal of the chandelier or luminaire, not only when lit but also when not, these lamps come in a classical slender shape with a unique, eye-catching lens design. They produce a beautiful sparkling warm light that delivers huge energy savings and minimises maintenance cost.