Advantages of LED Lighting:
 
1)
Energy Efficiency
  LEDs are highly energy efficient unlike incandescent lamps which lose much of its energy into heat. For example, a typical red traffic signal head lights which contains 196 LEDs draws 10W versus that of incandescent lamps that draws 150W. With the red signal operating about 50% of the day, it is a significant savings.
2)
Long Operating Life
  LEDs are projected to product a long service life of about 30,000 hours. For this reason, it is ideal for hard-to-reach locations and fixtures. Combined with its durability and resilient to environment factors, it can give a much higher operating life.
3)
Range of Colors
  LEDs are available in a wide range of colors, including white light. Through combination of various colored LEDs, dramatic color changing effects can be produced with stunning visual effects.
4)
No Ultra-violet Emission / Little Infrared Red Emission
  LEDs produce no UV radiation and very little heat. As such, they are especially ideal for illuminating objects which may be sensitive to UV light. For example, in wine cellar or works of art. Due to low heat dissipation, LEDs are commonly used in child friendly lighting. Unless you are using incandescent lamps as a heater, a lot of energy is wasted as heat rather than producing visible light.
5)
Durable / Minimal Maintenance
  LEDs are highly rugged since they do not feature any filament which is sensitive to shock and vibrations. Unlike incandescent and fluorescent which contains trace amount of mercury or are covered with glass, LEDs are considered indestructible under normal usage. LEDs lighting has a much higher MBTF (mean time to failure) than both incandescent and fluorescent lamps.
6)
Small Form Factor / Great Design Flexibility
  Due to its very small size, LED can be easily used as single or combination to produce the desired lumens, giving greater design flexibility to lightings designer.
7)
Lights Instantly
  Unlike fluorescent lamps, LEDs has no startup time and are thus suitable for digital controlling. It is easily dimmed and operates silently. As they uses low voltage power supplies, electrical safety is increased.


The following table illustrates the cost
saving for a room using LED lighting instead
of two 16W compact fluorescent bulbs or a quartz halogen 50W module.

1 kWh = 1000 Watt hr = US$0.30

10W LED module lightings = 50W quartz halogen in terms of intensity (approximate)


Based on a room using 20 lighting modules:


Types of Lighting Daily Usage
(hrs)
Monthly Usage
(Days)
Energy Consumption
(kWh)
Monthly Cost
(US$)
Quartz Halogen 50W
module
10 30 (50W x 20 x 10 x 30) / 1000 = 260 260 x 0.30 = US$78
Compact Fluorescent bulb (16W x 2)
10
30
(32W x 20 x 10 x 30) / 1000 = 192
192 x 0.30 = US$57.60
LED 10W module 10 30 (10 x 20 x 10 x 30) / 1000 = 60 60 x 0.30 = US$18
LED 18W module 10 30 (18 x 20 x 10 x 30) / 1000 = 108 108 x 0.30 = US$32.40

Average Return on Investment (ROI)

Upgrade from  Average ROI
 Incandescent  1.5 years
 Fluorescent  2.5 years