UC Davis

The research has been performed at the California Lighting Technology Center (CLTC) in order to achieve required energy performance and develop a technology-neutral Super Lamp specification for replacement of incandescent technologies in the residential sector. The CLTC specification considered several factors that included color, size, run-up time, and frequent lamp failure in enclosed luminaries or downlights. The Super Lamp specification focuses only on lamps with a nominal correlated color temperature (CCT) of 2,700 K. The minimum values were specified for special color rendering indices that were determined by estimating, based on efficacy and CRI measurements of 2,700 K CFLs of varying CRI. The Super Lamp requirement for run-up time, 45 seconds, was based on the fastest run-up characteristic observed in the CLTC laboratory with commercially-available amalgam lamps. The California utilities are in the process of determining their incentive structure for high-efficacy screw-base lamps.