2BHK Modern Flat Roof Single-Storey House and Free Plan

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LED drivers are 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. A badly matched (or designed) driver can reduce the lifetime of the LEDs it’s supplying current to (at worst, near instant failure), or cause flickering and other odd behaviors. LED drivers can be placed inside the lamp or luminaire, called a built-in type (or integral), or be outside the lamp or luminaire, called an independent type (or remote).

The term “efficiency droop” refers to the decrease in luminous efficacy of LEDs as the electric current increases above tens of milliamps (mA). Instead of increasing current levels, luminance is usually increased by combining multiple LEDs in one lamp. Solving the problem of efficiency droop would mean that household LED lamps would require fewer LEDs, which would significantly reduce costs.

LED lamps are used for both general and special-purpose lighting. Where colored light is needed, LEDs that inherently emit light of a single color require no energy-absorbing filters. LED lamps are commonly available as drop-in replacements for either bulbs or fixtures, replacing either an entire fixture (such as LED light panels replacing fluorescent troffers or LED spotlight fixtures replacing similar halogen fixtures) or bulbs (such as LED tubes replacing fluorescent tubes inside troffers or LED HID replacement lamps replacing HID bulbs inside HID fixtures)

The differences between replacing a fixture and replacing a bulb are that, when a fixture (like a troffer) is replaced with something like an LED panel, the panel must be replaced in its entirety if the LEDs or the driver it contains fail since it is impossible to replace them individually in a practical fashion (although the driver is often separate and so it may be replaced), where as, if only the bulb is replaced with an LED replacement lamp, the lamp can be replaced independently of the fixture should the lamp fail.

Some LED replacement lamps require the fixture to be modified such as by electrically removing the fixture’s ballast, thus connecting the LED lamp directly to the mains supply; others can work without any modifications to the fixture.