Profoto 331531 D2 500/1000 FlashtubeIlluminate Your Vision with the Profoto Flashtube D2 The Profoto Flashtube D2 is a high quality replacement flashtube designed for the D2 500 and D2 1000 monolights. Ensure consistent and reliable lighting for your professional photography needs with this essential accessory. Key Features: Compatibility: Designed for Profoto D2 500 and D2 1000 monolights. Power: 1000Ws Capacity. Specifications: Brand: Profoto Model Number: 331531 Capacity: 1000Ws