LED Fact Sheet


Key Additional Benefits of LED's

In consideration of LED technology there are a number of important facts that will help drive the decision in support of installing LED technology for lighting throughout the enterprise.

Efficiency: The efficiency of LEDs produces 4 times more light per watt than incandescent bulbs; this is useful in battery powered or energy-saving devices. LEDs are solid state and contain no fragile gases or filaments which have a limited lifespan, research shows that Metal Halide bulbs are designed to last up to 20,000 and High Pressure Sodium bulbs can last up to 24,000 whereas the US Department of Energy reports that LEDs are designed to last 50,000 hours or more. Some manufacturers are providing LED product solutions that can last 200,000 hours and more.

Color:    LEDs can emit light of an intended color without the use of color filters that traditional lighting methods require. This is more efficient and can lower initial costs.

Size:  LEDs can be very small (smaller than 2 mm) and are easily populated onto printed circuit boards.

On/Off time: LEDs light up very quickly. A typical red indicator LED will achieve full brightness in microseconds. LEDs used in communications devices can have even faster response times.

Cycling:  LEDs are ideal for use in applications that are subject to frequent on-off cycling, unlike fluorescent lamps that burn out more quickly when cycled frequently, or HID lamps that require a long time before restarting.

Dimming:  LEDs can very easily be dimmed either by Pulse-width modulation or lowering the forward current. TI has technology that ISG-IS is now incorporating into its light products that allows intelligent dimming both programmed and remotely configurable.

Cool light: In contrast to most light sources, LEDs radiate very little heat in the form of IR that can cause damage to sensitive objects or fabrics. Wasted energy is dispersed as heat through the base of the LED.

Slow failure: LEDs mostly fail by dimming over time, rather than the abrupt burn-out of incandescent bulbs.

Shock resistance: LEDs, being solid state components, are difficult to damage with external shock, unlike fluorescent and incandescent bulbs which are fragile.

Focus:  The solid package of the LED can be designed to focus its light. Incandescent and fluorescent sources often require an external reflector to collect light and direct it in a usable manner.

Toxicity:    LEDs do not contain mercury, unlike current technologies like Metal Halide and High Pressure Sodium.