A 230-volt LED filament light bulb, with an E27 base. The filament is visible as the led packaging for lighting applications pdf yellow vertical lines. LED Module from an industrial light luminaire, thermally bonded to the heat sink. The initial cost of LED is usually higher.
Degradation of LED dye and packaging materials reduces light output to some extent over time. Some LED lamps are made to be a directly compatible drop-in replacement for incandescent or fluorescent lamps. LED driver is required to convert the alternating current from the power supply to the regulated voltage direct current used by the LEDs.
LEDs are adversely affected by high temperature, so LED lamps typically include heat dissipation elements such as heat sinks and cooling fins. LED drivers are the essential components of LED lamps or luminaries.
A good LED driver can guarantee a long life for an LED system and provide additional features such as dimming and control. The LED drivers can be put inside lamp or luminaire, which is called a built-in type, or be put outside, which is called an independent type.