There are three types of projectors used for flood lighting :
a) Narrow beam Projector
b) Medium angle Projector
c) Wide angle Projector
a) Narrow beam Projectors: -
Light beam with such a projectors spreads between 12° and 25°. They can be employed for a distance of 70 meter.
b) Medium angle Projectors: -
Projectors with beam spread between 25° and 40°. These are employed for a distance of 30-70 meter.
c) Wide angle Projectors: -
A projector with beam spreads between 40° and 90°. They can be employed for a distance of 30 meter or below.
USE:
1) It is used to illuminate buildings at night, ancient building and monuments, churches & gardens etc
2) It is used for illuminating railway yards, stadiums, car parking area etc.
3) It is used for illuminating advertisements, boarding’s etc.