Low Pressure Sodium Lamp Construction

Physical Dimensions—SOX-E and SOX Lamps

Ordering

 

MOL1

(A)

Max. Diameter (B)

LCL2

(C)

 

Light Length (D)

 

Code

Bulb

In.

mm

In.

mm

In.

mm

 

In.

mm

 

SOX-E 18

T-17

8 12

216

2 18

54

5 12

141

 

3 58

92

 

SOX 35

T-17

12 316

310

2 18

54

7 14

184

 

7 12

192

 

SOX 55

T-17

16 34

425

2 18

54

9 12

243

12

305

 

SOX 90

T-21

20 34

528

2 1116

68

11 12

292

 

5 78

403

 

SOX 135

T-21

30 12

775

2 1116

68

16 38

416

 

25 716

646

 

SOX 180

T-21

44 18

1120

2 1116

68

23

584

38

965

 

 

 

 

 

 

 

 

 

 

 

 

 

1.MOL = Maximum Overall Length

2.LCL = Light Center Length

Base: Double Contact Bayonet-Medium (BY-22d)

A

C

B

D

1

7

2

5

8

3

4

6

1.Non-Metallic-Bayonet Base will not corrode or stick in lamp socket, providing quick, safe relamping. Locking pins on lamp base assure the lamp locks in socket and cannot vibrate loose. SOX-E lamps are distinguished by the use of the black bases compared to the tan bases used on SOX lamps.

2.Sodium Retaining Reservoirs provide even distribution of sodium for 100% lumen maintenance, long lamp life and lamp wattage control.

3.U-Bend Insulation Feature controls lamp wattage rise and helps provide more consistent lamp life.

4.Rough Service Arc Tube Support System eliminates arc tube movement along lamp axis yet allows radial arc tube flex. It provides highest protection from shock and vibration.

5.Uniform Indium Oxide Heat Reflecting Coating creates highest luminous efficacy of all light sources and contributes to 100% lumen maintenance by keeping arc tube at the optimum temperature.

6.Barium Getter absorbs trace gases to properly maintain correct arc tube temperature and maximize light output.

7.Triple Coil Electrode with full tungsten support holds more emission paste for superior life.Tungsten supports prevent electrode vibration keeping emissive paste on the electrode.

8.Fuse Coil in lamp base provides additional protection to ballast. By preventing D.C. currents that may occur at end of lamp life, ballast currents are lower, ballast temperatures are lower and ballast life is longer.

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Philips SOX-E manual Low Pressure Sodium Lamp Construction, Mol, Lcl

SOX, SOX-E specifications

The Philips SOX-E and SOX are advanced lighting technologies that have garnered attention for their effectiveness in various applications, particularly in street lighting and industrial settings. These high-pressure sodium lamps are designed to provide superior illumination while being energy efficient and environmentally friendly.

One of the main features of the Philips SOX-E and SOX series is their high luminous efficacy. These lamps convert a significant amount of electrical energy into visible light, which means they require less energy to produce the same amount of illumination compared to traditional incandescent lamps. This efficiency translates into lower energy bills and reduced carbon footprints for municipalities and businesses alike.

Another characteristic of the SOX-E and SOX lamps is their long lifespan. With an operational life that can exceed 16,000 hours, these lamps reduce the frequency of replacements and the associated maintenance costs. This longevity is particularly beneficial in hard-to-reach areas, where changing lamps can be both time-consuming and costly.

The SOX series also benefits from a unique spectral quality. They produce a distinctive warm yellow light that is ideal for outdoor applications, as it enhances visibility while minimizing light pollution. This soft light reduces glare, making it a popular choice for street lighting, where it creates a safer environment for pedestrians and drivers alike.

In terms of technology, the SOX-E models are designed with advanced materials that improve thermal stability and performance. These lamps utilize a specially developed blend of gas and phosphors to enhance light output and efficiency. The incorporation of innovative design features, such as improved arc tubes, helps to optimize performance and ensure reliability throughout the lifespan of the lamp.

Additionally, the Philips SOX-E and SOX series are compliant with various environmental standards, making them a responsible choice for sustainable lighting. Their design minimizes harmful emissions and uses recyclable materials, aligning with global initiatives for greener infrastructure.

Overall, the Philips SOX-E and SOX series represent a significant advancement in lighting technology, offering high efficiency, long life, and excellent light quality. Whether for street lighting or industrial applications, these lamps provide a practical and sustainable solution to the ever-growing demand for effective illumination.