Lights are often inserted in Bulb Holders for Lamps which offer electrical connections to the lamp and help it inside the lighting fixture. The usage of Bulb Holders for Lamps allows lights to become safely and conveniently replaced (re-lamping) in the end of life, or to transform power, color, lighting technology or and so on. There are plenty of different standards for these lamp bases, created by de facto and by many standards bodies. A basic coding system is a letter or abbreviation followed by a number.Some miniature lights have wire leads suitable for direct connection to wires; some reflector equipment and lighting have screw terminals for wire connections.
The construction of a Bulb Holders for Lamps defines and limits its intended use. Porcelain insulation can withstand considerably higher operating temperatures than bakelite or other plastics. The electrical elements and wires should be made to carry the intended present plus a security aspect.
The contact surface region, thickness and conductivity of your metal, connection approaches and maximum operating temperature should all be thought of inside the design of a new socket. Additionally, mechanical factors like shape from the socket, fixture mounting and attachment, lamp help, ease of re-lamping and total cost of manufacture should be regarded as. lamp bases designed for ordinary household and industrial use have far more design leeway than those employed in precision applications.The bulb base should be located far adequate in the filament that the metals using the lowest melting point will remain solid. Historically this metal was a tin/lead solder whose melting point could be as low as 180 °F (360°F). Because of the thermal alterations from ambient temperature to complete operating temperature, the design and style of a base ought to allow for a considerable quantity of expansion and contraction.
Spring elements are required to accommodate these dimensional modifications. Having said that – the temperature at which a metal loses its spring is far below the melting point. This is why some older lamp socket that no longer function is usually restored by prying up the base spring slightly.lamp base failures are usually brought on by mechanical abuse or by overheating. A sockets using a built-in switch is much more likely to fail in standard use because the switch components wear out. Insulation failures are often triggered by impacts or by difficulty inserting or removing a lamp. Socket applied outdoors or in damp places usually suffer from corrosion which may cause the lamp to “stick” inside the lamp base and attempts to modify a lamp can lead to breakage of either the lamp or the lampholder. The corrosion is not only environmentally created but could possibly be a outcome of the current flowing by way of the components when there’s appreciable resistance involving the parts. Fixtures in such environments might need gaskets or other waterproofing approaches to stop buildup of moisture within the lamp bases location.
Bulb Holders for Lamps Materials:
Interior Screw Shell: Aluminum: Aluminum is the most common and cost effective material for the socket interior.
Copper: Copper is an alternative to Aluminum where the fixture is exposed to weather. Porch fixtures should use sockets with copper screw shell and porcelain body.
Bulb Holders for Lamps Exterior Cap and Shell:
Brass: Brass is the most common materials in a socket shell. There are different finishes in the brass shell like; polished (shiny), antique, and unfinished
Brass plated: Brass plated shells are similar to the brass shells in appearance with a cheaper price. A brass plated shell comes with similar finishes to the solid brass shell.
Nickel plated: Shiny silver finish.
Bakelite/Phenolic: These socket shells are thick black plastic and are typically found in less expensive lighting where the sockets are hidden by the lamp body.
Porcelain Lamp Sockets (lamp holders) includes all candelabra, medium (standard) sizes, and mogul size sockets. Porcelain lamp sockets are more heat resistant and typically last much longer than regular phenolic (black plastic) lamp sockets. These porcelain sockets work well when used in fixtures with little or no air circulation available for the light bulb.
Porcelain: The most durable and long lasting shell, porcelain is more heat and weather resistant than any other shell type. Where the light is outside or hangs with a bulb facing down, a porcelain socket is highly recommended.
All our products – Electrical Bulb Holders for Lamps, B-22, B-15, ES-14, ES-27 bulb holder & ES-40 bulb holder Lighting Industries, Metal Pressing Components and Electrical Brass Parts – have the distinct advantage of top-level research and technical support. Committed to excellent Quality and full- fill customer”s satisfaction, we boast of a strict management system, advanced production and testing equipment and strong research capabilities in order to meet the demands of the clients. Utilizing advanced technologies developed both domestically and overseas, we are now supplying diverse range of mechanical products.
The astounding success that we have achieved is largely due to the stringent and meticulous focus on quality. We make every effort to make all our Bulb Holders for Lamps world class. We have streamlined our production process and use only the latest technology. We follow a comprehensive system of quality control to ensure that each product is thoroughly checked before being finally sent to the market.