Electrical Installation and Maintenance - Safety Guidelines and Types of Light bulbs.pptx
2. Safety Guidelines
•Avoid horse playing.
•Always wear your facemask and
•Always bring your tools.
•Follow the standard operating
•Report to the Teacher if there are
unnecessary things inside the
5. LIGHT BULBS
•Also called electric lights
•It is a device that produces visible
light from electric power.
•Most common form of
artificial lighting and is essential
to modern society.
6. LIGHT BULBS
•Lamps usually have a base made
of ceramic, metal, glass, or plastic,
which secures the lamp in the socket
of a light fixture.
•Electrical connection to the socket
may be made with a screw-thread
base, two metal pins, two metal caps
or a bayonet cap.
10. INCANDESCENT LAMP
•Devices that produces light by heating
a suitable material to a high
•Electric light with a wire filament
heated until it glows.
12. FLUORESCENT LAMP
•It is a low-pressure mercury-vapor
gas-discharge lamp that uses
fluorescence to produce visible light.
•An electric current in the gas excites
mercury vapor, which produces short-
wave ultraviolet light that then causes
a phosphor coating on the inside of
the lamp to glow.
14. LED LAMPS
•LED stands for light emitting diode.
•An electrical current passes through a
microchip, which illuminates the tiny
light sources we call LEDs and the
result is visible light.
15. LED (Light Emitting Diode)
•LED lighting products produce light up
to 90% more efficiently than
incandescent light bulbs
•LED is today's most energy-efficient
and rapidly-developing lighting
16. LED (Light Emitting Diode)
•Quality LED light bulbs last longer, are
more durable, and offer comparable or
better light quality than other types of