Philips Halogen Reflector DDL 150W 20V Light Bulb (9239 214 19794)DDL 150W 20V 24PK*** UPC 8711500410610 is for Carton with 24 pcs From PHILIPS ***Philips halogen reflector lamps offer the ideal no-fuss solution for a wide variety of medical, projection andscientific illumination systems. Their proven reliability makes them ideal for retrofit installations. The burners are precisely aligned for optimal light performance. Dichroic reflectors ensure heat dissipation towards the back of theoptical system, which helps the optical system remain within temperature limits. A special blue-filter version blocking out unwanted light above 700 nm is available for dental curing applications. In addition, you get all the proven advantages of halogen technology such as a CRI of 100 - the same as natural sunlight for the best possible color rendering. Halogen lamps also create a comfortable warm white light, and they maintain their high lumen output with almost no lumen reduction throughout their lifetime.