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Characteristics of different kinds of lamp holders
Author:Reborn Update:2009-12-18 13:13:31 from:Guangzhou DDU Home Lighting Appliance CO.,LTD
The lamp holder construction material is very important in terms of mechanical strength and thermal resistance
Many materials are used as below:
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Item
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Material
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Advantage
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Plastic lampholder
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Thermoplastic resin
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It offers good performances in term of elasticity and flexibility without using screws. That can be assemble small elements quickly. Good mechanical strength to reduce the thickness and weight
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Bakelite lampholder
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Thermosetting resin
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It’s widely used in the decorative lighting sector. Good strength, Reliability and traditionary glossy black appearance
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Ceramic lampholder
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Porcelain and ceramic
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Steatite is widely used to supply halogen source(230V and 12V) and discharge.The thermal factor is very important due to the reduced dimensions of light sources that transmit the heat.
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Metal lampholder
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Metal alloy
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It has outstanding mechanical strength and widely use din a decorative lighting fixture. Good electrical conductivity of the unmistakable smooth and polished finish,give the lampholder a solid appearance.
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All the insulating materials must pass specific tests to determine”
* Heat resistnace
* Self-extinguishing power
* Electric strength against surface current
