The EcoClassic halogen candle light bulbs are coated with an infra-red reflecting material, the inside reflects radiated back to the filament, just like a mirror. While standard bulbs waste energy due to their high losses of heat, EcoClassic lightbulbs reflect this heat back to the filament and use it again. By using the heat twice, they reduce the energy consumption by half.   General Benefits of Eco-Halogens: Warm White Saves 50% in energy and electricity costs compared to standard incandescent bulbs Like for like in size Dimmable Instant start-up 3000 hours average rated life. Lasts longer  compared to standard incandescent bulbs Brilliant sparkling white light with a colour rendering index (CRI) of 100 No mercury or other hazardous materials