Lighting Components and Lamp Filaments
Elmet Technologies offers a full array of lighting components both as a manufacturer and as the exclusive North American representative for Philips Lighting components produced globally. Our component market basket includes, but is not limited to, coils and filaments, specialty leads and supports, lamp bases, phosphors, and HID arc tube burners. Please contact us for any of your lamp component needs.
Lamp Filaments
Elmet is a world class global manufacturer of tungsten lamp coils, wire filaments, and other specialty components to lighting manufacturers for a broad spectrum of lighting requirements. Specialty components are designated by Elmet Technologies as leads and supports products while tungsten wire components generally fall into two broad categories of product: incandescent/halogen and fluorescent.
Incandescent and Halogen Filaments
These wire filaments are the light source for incandescent and halogen lamps. There are thousands of filament designs which have been developed over time based on changing lamp technology and lighting requirements, and new designs are being developed in the lighting industry on a daily basis. Such filaments vary with respect to many parameters such as basic coil type (single coil or coiled coil), bulb shape, gas fill, service life and lumen output.
Standard Straight Coil Products by Watts.pdf
Standard Coil Products by Watts.pdf
Standard Halogen Coil Products by Watts.pdf
Elmet coil engineering personnel have wide experience in wire filament design and welcome customer inquiries. A check list made for developing specifications for incandescent tungsten filaments, halogen tungsten filaments and other lamp filaments is provided below to aid you, the customer, in defining their requirements.
 SEM coiled coil 100 watt incandescent lamp filament. (33x) |
 SEM photo of single fluorescent cathode current carrying wire with overwrap. (33x) |
ELMET - Incandescent Coil Design Form.pdf
In general, filament designations consist of a letter or letters to indicate how the wire is coiled, and an arbitrary number sometimes followed by a letter to indicate the arrangement of the filament on the supports. Prefix letters include C(coil) — wire is wound into a helical coil or it may be deeply fluted; and cc(coiled coil) — wire is wound into a helical coil and this coiled wire again wound into a helical coil. Some of the more commonly used types of filament arrangements are listed below:
| CC6 | Horizontal Mount CC with One Center Support |
| CC8 | Vertical Mount CC with No Center Support |
| C9 | Horizontal Mount SC with Multiple Center Support Wire |
| STK | DBL Wound Electrode for Fluorescent Application |
| TRIP | TPL Wound Electrode for Fluorescent Application |
Fluorescent Filaments
Fluorescent coils, unlike incandescent filaments, are not true light sources, but more correctly, energy sources. Such coils are also referred to as exciter coils or cathodes. They are given an emission material coating after coiling, and their function inside of the lamp is to provide a flow of electrons which activate the light-producing fluorescent phosphors.
Fluorescent lamp coil designs are considerably more limited in number than those of incandescent filaments. As a result, the product line is somewhat more standardized: Elmet is pleased to offer such standard types of coils, as well as modifications of these for specific customer requirements.
Standard Flourescent Cathode Products by Watts.pdf
Application |
Ballast Type |
15 Watt, T8 |
Preheat |
32 Watt, T8 |
Instant Start |
20 Watt, T12 |
Rapid Start |
40 Watt, T12 |
Rapid Start |
75 Watt, T12 |
Instant Start |
HO, T12 |
Rapid Start |
VHO, T12 |
Rapid Start |
Elmet coil engineering personnel have wide experience in fluorescent coil design and welcome customer inquiries. A check list made for developing specifications for lamp coils is provided below to aid you, the customer, in defining their requirements.
ELMET - Flourescent Cathode Design Form.pdf
Leads and Supports Lamp Components
Elmet Technologies designs and produces a multitude of specialty-formed metal parts utilizing molybdenum, tungsten, aluminum, niobium, nickel, and other materials. These specialty components include, but are not limited to, metalizing coils and aluminum crimps, straight cuts, connectors, and stranded wire.
Lamp Bases & Caps
Elmet Technologies, through its representation of Philips Lighting base/cap plants located in Europe, provides North American customers with lamp base products globally recognized in the lighting industry for their world class quality.
In representing the world's number one supplier of caps, Elmet Technologies is able to satisfy our customers by offering the highest quality, outstanding support and logistics as well as continuous innovation for lamp base products. Elmet carries the complete product range of caps, which are primarily used in the lighting industry for such applications as CFL, GLS, fluorescent lamps, halogen lamps, automotive, HID and special lighting.
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Phosphors entering the furnace.
Elmet Technologies carries fluorescent powders made by Philips Lighting that are used in fluorescent (TL), and high-pressure and low-pressure mercury discharge lamps. Today, the phosphors group develops and manufactures two main groups of lamp phosphors: triband phosphors (80 colors) and specialty phosphors, such as UV phosphor.
Triband phosphors (80 phosphors) are based upon inorganic material containing ‘rare earth’ elements. A combination of red, green and blue results in a 50% increase in efficacy with regard to standard phosphors and excellent color rendering properties. Philips Lighting was among the first to introduce Triband phosphors on a worldwide scale and we are proud of the know-how we have built and the ongoing developments in this area. Triband phosphors are available in ready-for-use premixed blends or in single components.
Specialty phosphors consist of a wide variety of chemical compositions, again based on ‘rare earth’ elements. They are often developed in close cooperation with our main customers, with which we have entered into long-term relationships. The phosphors are used in e.g. tanning lamps, in water purification applications and in non-lighting applications.
Because of Philips Lighting’s extensive know-how of raw materials and production processes, this has contributed to their current standing of being one of the largest phosphor manufacturers in the world. In partnering with Philips, Elmet Technologies is able to offer customer product-driven innovations as well as technical support, including assistance with the suspension making process. With the industry’s continuous demand for coating weight reduction, Philips has taken a leadership role in striving to meet this requirement.
Elmet Technologies supplies high pressure sodium (HPS), mercury vapor (MV), and metal halide arc tube burners to lamp assembly operations for many applications. Standard HPS types and specifications are listed here; but please also contact us for any of your metal halide and mercury vapor requirements.
HIGH PRESSURE SODIUM
Watts |
Volts Nom |
Order Code |
Tube O.A.L. |
PCA Length |
PCA OD |
Niobium Tube OD |
Niobium Projection |
Niobium Tube ID |
35 |
52 |
963298 |
56 +/-2 |
44 +/-2 |
5.2 |
2.0 |
6.5 +/-1 |
1.6 |
50 |
52 |
963025 |
56 +/-2 |
44 +/-2 |
5.2 |
2.0 |
6.5 +/-1 |
1.6 |
70 |
52 |
965087 |
65 +/-3 |
48 +/-2 |
6.2 |
3.0 |
8.5 +/-1 |
2.5 |
100 |
52 |
965202 |
74 +/-3 |
58 +/-2 |
6.9 |
3.0 |
8.0 +/-1 |
2.5 |
150 |
52 |
963124 |
83 +/-3 |
69 +/-2 |
6.9 |
3.0 |
7.0 +/-1 |
2.5 |
150 |
100 |
963132 |
101 +/-3 |
86 +/-2 |
6.4 |
3.0 |
7.5 +/-1 |
2.5 |
200 |
100 |
946650 |
98 +/-3 |
83 +/-2 |
7.0 |
3.0 |
7.5 +/-1 |
2.5 |
250 |
100 |
963116 |
108 +/-3 |
91 +/-2 |
8.5 |
3.0 |
8.5 +/-1 |
2.5 |
400 |
100 |
963017 |
131 +/-3 |
113 +/-2 |
9.2 |
4.0 |
9.0 +/-1 |
3.5 |
1000 |
250 |
528749 |
260 +/-3 |
244 +/-2 |
9.5 |
4.0 |
8.0 +/-1 |
3.5 |
HIGH PRESSURE ARC TUBES
Order Code |
Watts |
Volts |
Ansi Code |
Min Order Qty (Pcs) |
963298 |
35 |
52 |
S76 |
800 |
963025 |
50 |
52 |
S68 |
800 |
965087 |
70 |
52 |
S62 |
800 |
965202 |
100 |
55 |
S55 |
800 |
963124 |
150 |
55 |
S55 |
800 |
963132 |
150 |
100 |
S56 |
800 |
964650 |
200 |
100 |
S66 |
800 |
963116 |
250 |
100 |
S50 |
800 |
963017 |
400 |
100 |
S51 |
800 |
528749 |
1000 |
250 |
S52 |
800 |