The Energy Saver High voltage lamps have been newly developed. The basis for this is an optimized coil design, & the Xenon technology. Through the low voltage lamps Osram relies on the proven IRC technology which is based on the principle of heat recovery. Through special coating on the lamp bulb (Infra-Red Coating), the radiated heat from the filament is again turned back to this & remains in the lamp. Thus, less energy must be supplied from outside to bring the coil to operating temperature.