QH500T3/7 Double Ended Heat Lamp Bulb: Description: - Voltage 120 - Wattage 500 - Base RX7S - Shape T3 - Overall Length (mm) 218 - Life Hours 5000 - Kelvin 2450 - Color TRANSLUCENT - Filament C-8 - Manufacturer: Philips Lighting Light Bulb Cross References (Also known as) * 1001297 USHIO * H/120V/500W/R7S/223MM/IR * QH/500W/T3/7 * QH500T3/7 USHIO * QH500T3/R7S USHIO * QIH-0507 USHIO * QIH120-500T/E USHIO * QIH120-500T/R7S * QIH120V-500W/T/E USHIO * QIH120V-500W/T/R7S * QIH120V500W/T/E USHIO * QIH120V500W/T/R7S * QIH120V500WT/E USHIO * QIH120V500WT/R7S * QIH0507 USHIO QH500T3/7 Double Ended Heat Lamp Bulb