Socket
The type of base used in the lamp.
The base is the contact part of the lamp, which is fixed in the socket and is responsible for fixation, electrical connection and the possibility of safe removal. Thus, the type of base directly determines compatibility with a particular cartridge. However, in addition to this, there is also such a parameter as the base of the base. It determines primarily the contact configuration used on a particular base. And in our paragraph it is written as the second value.
In lamps for different purposes (see above), the set of bases used is very different. So, for the head light the following options are used:
D1S,
D1R,
D2S,
D2R, D3S , D3R,
D4S,
D4R,
H1,
H2,
H3,
H4,
H7,
H8,
H9,
H10,
H11,
H13,
H15,
H16,
H27W /1,
H27W/2,
HB1,
HB3,
HB4,
HB5,
HIR2,
HS1,
M5,
R2. For markers and other similar lights, in particular,
C5W,
C10W,
C15W,
H21W,
H6W,
P21W,
PY21W,
P21/4W,
P21/5W,
P27/7W,
PR21W,
R5W,
R10W,
T4W,
W5W,
WY5W,
W16W are used ,
W21W,
WY21W,
W21/5W.
If desired, you can find a detailed explanation of each designation in special sources.
Rated power
The power normally consumed by the lamp during operation. This parameter is often used to evaluate the overall brightness of the glow, especially in the case of lamps for headlights (see "Purpose"): such a specific parameter as the luminous flux, firstly, is less familiar to ordinary car owners, and secondly, in its characteristics are not always indicated. However, it must be remembered that only lamps of the same type (see above) can be compared with each other in terms of power consumption. different types can differ markedly in efficiency and luminosity. But what this indicator directly affects is the power consumption of the lamp and, accordingly, the load experienced by the generator or battery. Modern car lamps have a power of up to 100 W, such power consumption is normally tolerated by the on-board network in normal operation. However, the lower horsepower provides some fuel savings.
Beam angle (LED)
The angle of illumination provided by the LED car lamp (see “Type”). This parameter, as a rule, is selected by the manufacturer taking into account the purpose (see above) and other features of the lamp’s use.
Models for headlights (see “Purpose”) usually have fairly large coverage angles - from
270° to
360°(the latter cover almost the entire sphere, with the exception of the space behind the base). This is necessary to work effectively with headlight reflectors. Theoretically, the larger the illumination angle, the more efficiently the reflector area is used and the higher the actual brightness; however, in practice this difference is not so noticeable, and much depends on the specific configuration of the reflectors. A specific type of LED headlight lamps are models with an illumination angle of about 60°, in which the concentration of the light beam is ensured by the built-in reflectors of the lamp itself.
In turn, in auxiliary lighting, the angles are selected for the specific specialization of the lamp and are usually at least
120°(maximum - the same 360°).
