LED Lamps

An?LED lamp?or?LED light?is an?electric light?that produces light using?light-emitting diodes?(LEDs). LED lamps are significantly more?energy-efficient?than equivalent?incandescent lamps?and?fluorescent lamps.?The most efficient commercially available LED lamps have efficiencies exceeding 200?lumens?per watt (lm/W) and convert more than half the input power into light.?Commercial LED lamps have a lifespan several times longer than both incandescent and fluorescent lamps.

LED lamps require an electronic?LED circuit?to operate from mains power lines, and losses from this circuit means that the efficiency of the lamp is lower than the efficiency of the LED chips it uses. The driver circuit may require special features to be compatible with lamp dimmers intended for use on incandescent lamps. Generally the current waveform contains some amount of distortion, depending on the luminaires' technology.

The LED lamp market is projected to grow from US$75.8?billion in 2020 to US$160?billion in 2026.

LEDs come to full brightness immediately with no warm-up delay. Frequent switching on and off does not reduce life expectancy as with fluorescent lighting.Light output decreases gradually?over the lifetime of the LED.

Some LED lamps are drop-in replacements for incandescent or fluorescent lamps. LED lamps may use multiple LED packages for improved light dispersal, heat dissipation, and overall cost. The text on retail LED lamp packaging may show the light output in lumens, the?power consumption?in watts, the?color temperature?in?kelvins?or a color description such as "warm white", "cool white" or "daylight", the operating temperature range, whether the lamp is dimmer compatible, whether the lamp is suitable for humid/damp/wet conditions, and sometimes the equivalent wattage of an incandescent lamp delivering the same output in lumens.