Sale of halogen light bulbs and light sources. Halogen technology has been present on the market for years, which is why it has reached a high level of construction maturity. Eco halogen bulbs are available which reduce consumption compared to first generation halogen bulbs. These lamps are available on the market for e27, e14, gx53, gu5.3, gu6.5, gu10 lamp holders for operating voltages of 230 V and 12 V alternating and direct. These light sources generally have a lifespan ranging from 1000 to 6000 hours depending on the model installed and some of them are adjustable dimmable.