| Design volts (V) |
The voltage at which a lamp is designed for rated ampere,
candlepower and laboratory-life characteristics. |
| Design amperes (mA)
|
The current flowing through a lamp when operated at its design
voltage. It is subject to nominal manufacturing tolerances ± 10 % |
| Mean spherical candle power
(MSCP)
|
The MSCP is the generally accepted method used to indicate the
brightness of miniature lamps; it is the total value emitted from
a lamp placed at the center of a circle having a specified
diameter. The standard lamp calibrated by National Bureau of
Standards is used in determining this value. To convert to lumens,
multiply MSCP by 4pi (Lumens = 12.57 × MSCP). |
| Average laboratory life (h)
|
Lifetime indicated is based upon test data recorded under
strictly controlled laboratory conditions. Under normal operating
conditions, however, lifetime may be shorter due to factors such
as voltage fluctuation, shock, vibration, temperature, and other
environmental and operation conditions. |
MOL
(Maximum Overall Length)
|
Maximum
length as measured from the bottom of the base (or bottom of glass
tip for unbased lamps) to the top of the envelope. |
MOD
(MaximumOutside Diameter)
|
Measurement
across the largest part of the envelope. |
| LCL (Light Center Length)
|
Measurement
from the geometric center of the filament to:
Flange Base - top of flange
Grooved Base - center of groove
Bi-Pin Base - flat bottom
Screw Base - bottom of center
contact
Bayonet Base - top of base pin
Wedge Base - center of notch
SC or DC Prefocus Base -bottom of
indentations
on prefocus collar
Wire Terminal - not specified |
