All-in aggregate
Look at {ballast}.
ballast
General
ballast factor
The ratio of the luminous output of a lamp when operated on a ballast to its luminous output when operated
Glossary
constant-wattage ballast
A ballast used with a high-intensity discharge lamp to minimize the effects of voltage variations and to provide a high
Glossary
certified ballast
A fluorescent lamp ballast which adheres to performance standards set by the Certified Ballast Manufacturers Association.