Areas of application: Studio, TV, & Film, Professional & High Speed Photography, Solar Simulation High intensity light providing true color performance with a >90. Longer life with heat dissipating round moly-foil design on lamps 4000W. Mechanically robust with eXtreme Seal (XS) technology, up to 450°C at the pinch seal. Capable of hot restrike ignition. High stability of color temperature over lifetime. Compression sealed base provides ehanced durability. High energy efficiency providing up to 100 lm/W. Compression sealed base provides ehanced durability.