Technical characteristics and usage of lighting devices
16 03 2008| Technology Power Efficiency Service life | |||
| (watt) | (lumen/watt) | (hours) | |
| Standard incandescent | 3 – 1,000 | 10 – 15 | 1,000 – 2,000 |
| Halogen incandescent | 5 – 500 | 15 – 25 | 2,000 – 4,000 |
| Fluorescent tube | 4 – 56 | 50 – 100 | 7500 – 24,000 |
| Compact fluorescent lamp | 5 – 40 | 50 – 80 | 10,000 – 20,000 |
| HP mercury vapor | 40 – 1,000 | 25 – 55 | 16,000 – 24,000 |
| High-pressure sodium | 35 – 1,000 | 40 – 140 | 16,000 – 24,000 |
| Low-pressure sodium | 35 – 180 | 100 – 185 | 14,000 – 18,000 |
| Metal halide | 30 – 2,000 | 50 – 115 | 6,000 – 20,000 |
| LED | 0.05 – 0.1 | 10 – 30 | 40,000 – 100,000 |
In all cases, the service life of lamps is reduced by frequent ignition, except for induction compact fluorescent lamps and LEDs.
Fields of application, advantages and disadvantages:
|
Technology |
Application |
Advantages |
Disadvantages |
|
Standard incandescent |
- 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 |
- 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 |
|
Compact fluorescent lamp
|
- Domestic use - Offices - Replacement of incandescent lamps
|
- Good luminous efficiency - Good color rendering |
- High initial investment compared to incandescent lamps |
|
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 |
