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UPS /Inverter/ Battery Maintenance Contracts
 
   

 

CCTV Camera surveillance

 

EPABX/Key telephone system

 

UPS / Inverter

 

Batteries

 

Solar Panels

 

LED Lights

 

Security System (Alarm)

 

Access Control Systems

 

LED and LCD Projectors

 

Public Addressing System

 

RO Systems

 
 
 
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LED Lights

An LED lamp is a light-emitting diode (LED) product that is assembled into a lamp (or light bulb) for use in lighting fixtures. LED lamps have a lifespan and electrical efficiency that is several times better than incandescent lamps, and significantly better than most fluorescent lamps, with some chips able to emit more than 100 lumens per watt.

Like incandescent lamps and unlike most fluorescent lamps (e.g. tubes and CFL), LED lights come to full brightness without need for a warm-up time; the life of fluorescent lighting is also reduced by frequent switching on and off. Initial cost of LED is usually higher. Degradation of LED dye and packaging materials reduces light output to some extent over time. With research into organic LEDs (OLED) and polymer LEDs (PLED), cost per lumen and output per device have been improving so rapidly according to what has been called Haitz's law, analogous to Moore's law for semiconductor devices.

Some LED lamps are made to be a directly compatible drop-in replacement for incandescent or fluorescent lamps. An LED lamp packaging may show the lumen output, power consumption in watts, color temperature or description ("warm white") and sometimes the equivalent wattage of an incandescent lamp of similar luminous output.

LEDs do not emit light in all directions, and their directional characteristics affect the design of lamps. The light output of single LEDs is less that of incandescent and compact fluorescent lamps; in most applications multiple LEDs are used to form a lamp, although high-power versions (see below) are becoming available.

LED chips need controlled direct current (DC) electrical power; an appropriate power supply is needed. LEDs are adversely affected by high temperature, so LED lamps typically includeheat dissipation elements such as heat sinks and cooling fins.

BRAND:  Philips,Avni Energy

 

 

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