Philips is the world’s first to present a lamp prototype that produces a record 200 lumen per watt (lm/W) of high quality warm white light. This Philips LED technology breakthrough introduces tremendous potential for lowering energy consumption for lighting by half. Given that lighting accounts for c.15% of energy consumption worldwide, this innovation could drive massive cost and energy savings.
Until now, the relative energy efficiency of fluorescent lighting (100lm/W) has seen it dominate in office and industrial environments. Homes and shops, meanwhile, have tended to stick with the gentler, warmer light produced by conventional bulbs (operating at around 15lm/W) or halogen lights (25lm/W). Philips’ new 200lm/W LED, however, leaves all three technologies in the shade. Vastly more energy efficient than incandescent and halogen lighting, LED can drive down energy bills
As an added benefit, the new LED’s generate less heat, so they can be made without heat sinks. This means they are less bulky, give greater design freedom, use less material and can be produced more cheaply. It will be interesting to see how much they cost though and if there are any technical challenges to replace existing lighting systems and the costs associated with this.
The 200lm/W LED is expected to hit the market in 2015 and will ultimately be used in a wide range of applications.
Source: Philips – more information on their website here
What is LED lighting?
Light-emitting diodes (LEDs)have been around for years.
Traditionally, they have been used as indicators on electrical devices, such as standby lights on TVs. This was because LEDs were available only in red, but recent advances mean that other colours are now available, and the light emitted is much brighter.
White light (used for general lighting) using LEDs can be created via a number of techniques. One example is mixing red, green and blue LEDs.
It is suggested that LEDs can last for up to 100,000 hours, compared with the 1,000 hours of traditional incandescent light bulbs and compact fluorescent lamps’ (CFLs) 15,000 hours.
The long lifespan and low energy use make LEDs economically attractive because even though the fittings cost more, the running and maintenance bills are lower.