| |
Back
Lighting Circuit | Up
Construction Mechanic Basic Volume 02 - Construction methods and practices | Next
Headlights |
Figure 2-55.—Lamp construction and configurations.
LAMPS
electrical system used.
Small gas-filled incandescent lamps with tungsten
filaments are used on automotive and construction
equipment (fig. 2-55). The filaments supply the light
when sufficient current is flowing through them. They
are designed to operate on a low voltage current of 12
or 24 volts, depending upon the voltage of the
the vehicle will be of the single- or double-contact
small one-half-candlepower bulbs to large 50-
candlepower bulbs. The greater the candlepower
of the lamp, the more current it requires when
lighted. Lamps are identified by a number on the
base.
When you replace a lamp in a vehicle, be sure the
new lamp is of the proper rating. The lamps within
Lamps are rated as to size by the candlepower
(luminous intensity) they produce. They range from
types with nibs to fit bayonet sockets, as shown in
figure 2-56.
2-44
|
