write different lamps with rating used in domestic purpose?
Answers
Answer:The different types of lights or lamps include the following:
1. Incandescent lamps
2. Compact fluorescent lamps
3. Halogen lamps
4. Metal halide Lamps
5. Light Emitting Diode
6. Fluorescent tube
7. Neon lamps
8. High intensity discharge lamps
9. Low pressure sodium lamps
Answer:
Type Application Advantage Disadvantage
Standard Incandescent bulbs – Domestic use
– Localized decorative lighting – Direct connection without intermediate switchgear
– Reasonable purchase price
– Compact size
– Instantaneous lighting
– Good color rendering – Low luminous efficiency and high electricity consumption
– Significant heat dissipation
– Short service life
Halogen Incandescent bulbs – Spot lighting
– Intense lighting – Direct connection
– Instantaneous efficiency
– Excellent color rendering -Average luminous efficiency
Fluorescent tube – Shops, offices, workshops
– Outdoors – High luminous efficiency
– Average color rendering – Low light intensity of single unit
– Sensitive to extreme temperatures
HP mercury vapor – Workshops, halls, hangars- Factory floors – Good luminous efficiency
– Acceptable color rendering
– Compact size
– Long service life – Lighting and relighting time
of a few minutes
High-pressure sodium -Outdoors
– Large halls – Very good luminous efficiency – Lighting and relighting time
of a few minutes
Low-pressure sodium – Outdoors
– Emergency lighting – Good visibility in foggy weather
– Economical to use – Long lighting time (5 min.)
– Mediocre color rendering
Metal halide – Large areas
– Halls with high ceilings – Good luminous efficiency
– Good color rendering
– Long service life – Lighting and relighting time
of a few minutes
LED – Signaling (3-color traffic lights, “exit” signs and emergency lighting) – Insensitive to the number of switching
operations
– Low energy consumption
– Low temperature – Limited number of colors
– Low brightness of single
unit