London: Philips has unveiled an LED lamp that it describes as `the world`s most energy-efficient`.
The firm said the prototype tube lighting LED is twice as efficient as those currently used in offices and industry around the world, but offers the same amount of light.
Being able to halve the amount of energy used could bring huge cost and energy savings, it added.
According to the BBC, the prototype tube lighting produces 200 lumens per watt (200lm/W) compared with 100lm/W for equivalent strip lighting and 15lm/W for traditional light bulbs .
The new lights are intended to replace the fluorescent tube lighting used in offices and industry, which currently account for more than half of the world`s total lighting.
Philips expects the light to go on the market in 2015, initially to replace office lighting, the report said.