Current Usa ACU02020 SunPaq Dual Actinic 420nm/460nm Bulb with 10Q Square Pin, 32-watt SunPaq dual actinic 32-watt bulb SunPaq lamp is handcrafted with the best components, phosphors and rigorously tested, setting a new standard in compact fluorescent lighting Dual actinic bulb features both 420nm and 460nm actinic tube within each lamp and GY10Q square gold-plated pin configuration High quality Philips lamp filament provides the right amount of kick to fire the lamp and maintain high lumen output Measures 12-1/2-inch length by 1-3/4-inch width by 1-inch height