JDD halogen light bulb featured with double envelop frost glass tube, double helix filament, shockproof filament support, 360° light emitting and UV free. E26/E27 lamp base, 100W/150W/250W power consumption, warm white 2900K light color and 100% color rendering, good to photography lighting, functional lighting or heating equipments.(mainly installed in modeling light, background light, strobe light, flash lamp and bath heater, etc, compatible well with brand photographic light fixtures such as Bowens, Interfit and Elinchrom.)