The PowerPoint gives a brief description of the criteria for selection of the appropriate light fixture.

1. LED: Making the Light Choice

2. Types of Light Sources
1.Incandescent Incandescent
Halogen
2.Low Pressure Discharge Fluorescent
Low Pressure Sodium
3.High Intensity Discharge Metal Halide
High pressure sodium
4.LED

3. Factors to Consider
Lamp Life: This refers to the period the light source will
operate at the required or recommended level.
Efficacy: This is the ratio of lumens per watt and indicates the
total light output of a light source per unit of energy
consumed.
Cost: This includes the initial cost of acquisition and the life
cycle costs such as maintenance/replacement costs.
Suitability for the operating conditions: The efficacy of the
light source is affected by environmental factors such as dirt,
heat, cold, vibration, corrosive atmosphere, position and
orientation.

4. Effects of Poor Choice of Lighting
1. Health effects such as eyestrain, fatigue,
headaches, stress and can result in accidents.
2. Reduced quality of work.
3. Lower productivity.
4. Increased cost of production.

5. LED
A light emitting diode is a p-n diode that emits
light when activated. This type of diode is
formed by the combination of a p-type and an
n-type semiconductor connected to two
electrical terminals.
When electrical energy is applied, the junction
emits light. This involves flow of electrons from
the negatively charged layer to a positively
charged on in the semiconductor structure
through a process called electroluminescence.

6. How LED Bulbs work

7. Parts of an LED Bulb

8. Benefits of LED
1.Lower energy consumption
2.Longer Lifetime
3.Smaller Size
4.Faster Switching

9. Application of LED
Aviation Lighting
Automotive headlamp
Advertising
General Lighting
Traffic Signals

10. Allianz Arena Powered by LED

11. LED the way and make the light choice!

12. CONTACT US
P.O. BOX 50583-00200, Nairobi (Kenya)
Web www.eenovators.com
Repren Complex Mombasa Rd Suite 103/104