Breeze can offer a savings between 60% and 80% of lighting bill. Cost of changing the existing lighting may be subsidized by ESKOM. Breeze has established partners and suppliers to accommodate 80% -90% of existing lighting requirements. A lighting revolution is on the way that could end at the flick of a switch the battle between supporters of conventional bulbs and the eco-friendly variety. It is reckoned the bulbs could slash household lighting bills by three-quarters. If installed in every home and office, they could cut the proportion of electricity used for lights from 20 per cent to 5 per cent a year. As well as lasting over 100,000 hours, ten times as long as today's eco-bulbs, the LED bulbs do not contain mercury, so disposal is less damaging to the environment, and they do not flicker - a problem that has been blamed for migraines and epileptic fits. Professor Humphreys says the LED bulbs developed are twelve times more efficient than the unpopular fluorescent low-energy bulbs.