Usage includes locomotive headlamp (headlight), aircraft landing lights, and residential and commercial recessed lights.
PAR lights possess a lens and reflector that are integral parts of the lamp, the position of which cannot be altered relative to the filament.
The glass envelope or "bulb" of all incandescent lamps is measured in eighths of an inch. Thus a PAR 64 is, nominally, 64 eighths of an inch in diameter. The approximate nominal lamp bell diameter in inches can be found by dividing the PAR size by 8. For example, a PAR30 lamp is approximately 3.75 inches in diameter. Similarly, the diameter in millimeters can be found by multiplying the PAR designation by 3.175. For example, a PAR16 lamp is approximately 50.8 mm in diameter.
 |
Depending on the parabolic reflector geometry and placement of the filament within the paraboloid, PAR lamps can achieve a wide range of beam widths, from narrow spot to wide flood. For lighting effects even wider than wide flood can provide, supplemental reflectors or lenses can be used. The following suffixes are commonly used with PAR lamps to indicate their beam width:
| Description | Suffix | Beam angle |
| Very Narrow Spot | CP60 | 12° |
| Narrow Spot | CP61 | 14° |
| Medium Flood | CP62 | 24° |
| Wide Flood | CP95 | 70° |
Standard Power Rating for PAR56 is: 500W, 300W and 200W.
Base Connection Type: Screw Terminal
Beam Angle (Nom): 40o
Voltage: 30V
Filament Design: CC-8
Luminous Intensity (Max): 10,000 Candle
Beam Description: Wide Flood
Correlated Color Temperature: 2000K
Nominal Life Time: 350 hr
Nominal Life Time for Halogen Lamp: 2000 hr
The resistor values of the control to a locomotive headlight are:
Supply voltage = 74 volts
Bulbs: PAR-56 30 volts/200 watts
Primary resistor = 4.7 ohms
Bright = 1.6 ohms
Medium = 1.3 ohms
Dim = 5.6 ohms
Resistors are cumulative
ie Bright = 4.7 + 1.6
ie Medium = 4.7 + 1.6 + 1.3
ie Dim = 4.7 + 1.6 + 1.3 + 5.6
Standard lifetime of Incandescent lamp is normally 500 hours but with halogen technology the nominal life increases to 2000 hours.
World Part Supplier as an industrial spare parts supplier is ready to provide and supply all different kind of PAR sealed beam lamps.
PAR56 headlight bulb is one of the parts that we normally supply for our clients.
Headlight lamps that World Part Supplier provides, meets FRA requirement referenced in 49 CFR Part 229.125 (a) (1) and 229.125 (d) (2).
