Many people wonder: "Does the operation of a led lamp differ very much from that of n incandescent lamp?" The answer is yes. This is because LED is short for Light Emitting Diode. A LED lamp is a type of solid-state lighting, built up from a group of LEDS. The operation of LED lamps is based on the diode; a semi-conductor that gives light when a current runs through it. Together, the LEDS determine the characteristics of the lamp, such as radiation angle, light flow, light intensity and colour rendering. LEDs radiate in one direction. This can be adjusted by using lenses, so that the light can be bundled into a focused ray, or by a special configuration of the LED chips.
The operation of LED lamps may be based on several methods:
SMD is an abbreviation of Surface Mounted Service. This means that loose LED modules are soldered on a printed circuit board. These modules are visible to the eye, so that the light is experienced in a different manner than that of a COB LED.
COB is short for Chips On Board. COB means that small LED light points are positioned very close to one another, so that they cannot be distinguished with the naked eye. This makes COB an increasingly better replacement for the traditional halogen lamp.
Heat dissipation is a disadvantage of LED lamps. Incandescent lamps and energy-saving lamps can tolerate the heat that they generate. LED lamps do not have that capacity and may even get damaged by too high temperatures. That is the reason why LED lamps are fitted with cooling orifices or even a complete aluminium base. When a LED lamp is not sufficiently cooled, permanent temperature damage occurs.