This GY6.35 Energy Saving Halogen Capsule lamp is rated at 35 Watts and runs on 12 Volts the perfect alternative to a 50 watt standard halogen capsule bulb. This is a high intensity light source lamp that is often found in a wide variety of domestic commercial and retail fittings due to the bright crisp light it emits. The average life of this lamp is 2000 hours.