LIGHTING GLOSSARY
Acronyms, abbreviations and technical terms used throughout this catalog are defined below.
ACRONYMS AND ABBREVIATIONS Acronyms, abbreviations, and technical terms used throughout this catalog are defined below.
1x4 2x2 2x4
One foot by four feet in dimension (nominal) Two feet by two feet in dimension (nominal) Two feet by four feet in dimension (nominal) Standard incandescent lamp shape American National Standards Institute
R Lamp
Reflector lamp
RWT8
Reduced wattage 1" diameter fluorescent lamp
SDS SSL
Supplemental data sheet
A-Lamp
Solid-state lighting
5 / 8 " diameter tubular lamp 1" diameter tubular lamp 1½" diameter tubular lamp
ANSI
T5 T8
BF
Ballast factor
BR Lamp
Bulged reflector lamp
T12
CCT CEE CFL CMH
Correlated color temperature Consortium for Energy Efficiency
VHO
Very high output
W
Watt(s) demand for electricity and natural gas
Compact fluorescent lamp Ceramic metal halide Color Rendering Index DesignLights Consortium U.S. Department of Energy
CRI
DLC® DOE
ES
ENERGY STAR
G Lamp
Globe-shaped light bulb, generally for exposed use High-intensity discharge. Includes: HPS, MH, CMH, PSMH, and mercury vapor
HID
HO
High output
HPS
High-pressure sodium
HPT8 IESNA
High-performance 1" diameter fluorescent lamp Illuminating Engineering Society of North America
kW
Kilowatts
kWh LED
Kilowatt-hours
Light emitting diode
lm
Lumen(s)
lm/W NEC
Lumens per Watt
National Electric Code
MH MV
Metal halide Mercury vapor
PAR Lamp
Parabolic aluminized reflector lamp
PSMH
Pulse-start metal halide Qualified products list
QPL
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