Halogen lights are highly essential for theatrical lighting. So, get the Ushio 575W Lamp that can be used in place of FKW 300W and FRK 650W lamps, which are used in theatrical Fresnels. This medium-wattage lamp not only lets two instruments to be used on a 1200 watt capacity, but also maximizes the light output by dimming the channel.The bi-plane filament design in addition to the special gas mixture used by the halogen capsule helps it prevent overheating and lamp darkening in instrument designs that are hotter and smallerThe Ushio JCS120V ensures high color stability throughout its lifetimeIt allows two fixtures per circuitThis lamp is available in two versionsIt produces 26 lumens per watt