- The blue color - clear white lights are generally vanity mirror acceptable, and the size of the a

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As explained in the previous meeting (on the subject of the types of street lighting armature) that k omponen armature lights (luminaires) can be grouped according to function and consists of:
Well, at this meeting will be described on the first optical system armature lights (luminaire) street lighting. While the electrical system and mechanical system of street lighting armature vanity mirror will be described in subsequent meetings.
An armature lamp optical system (luminaire) consists of a lamp, reflector and refractor. Each of these components will be described as follows: The most important component of the system is pencahayaaan light source. This component is a major determinant of aspects of visual quality, economy, efficiency, and energy conservation aspects of the lighting system. A source vanity mirror of electrical caahaya a device that converts electrical energy, or electrical power (in watts) into electromagnetic radiation or light appears (in lumens). The rate of change of electrical energy into visible vanity mirror light is called "light-effectiveness" is measured in lumens per watt. Figure 2 below shows the "family tree" or family tree of lights.
Only high intensity light diffusing (HID) which is currently used for street lighting projects. vanity mirror While the general characteristics of other street lighting as shown in the table below.
95 -140
Variations street lighting has been used for many years. A description of the types of light and handy hints on its use will be described as below. vanity mirror
- Requires ballast (resistor current transformer).
- Substitute the popularity of incandescent bulbs. Higher initial costs and require ballasts, but thanks to the relatively higher efficacy and longer shelf life (when introduced) vanity mirror makes it much more attractive vanity mirror than the incandescent bulbs. However, at this time it is not yet meet the standards of energy.
- The blue color - clear white lights are generally vanity mirror acceptable, and the size of the arc tubes provide a light source that is small enough to allow for better light control. A phosphor-coated outer bulb, which consists of a higher output and a more pleasant color display is also available. However, due to the light control is more important than the color of the street lighting congenital, it is usually prefer to use clear lights.
- Is a type of mercury lamp arc tube which contains, in addition to additional mercury, certain iodide vanity mirror compounds can increase the effectiveness and good color display without vanity mirror using a phosphor-coated balls.
- The size of the light source is an arc tube size, allowing better control of the light remains the same equipment as used in the mercury lamp and a clear color display is excellent, but the lower the lamp lifespan.
- Internal vanity mirror starting device operates with ballast mercury lamp or metal halide lamp ballasts.
- Dual arc tube or lamp "standby" vanity mirror to provide light as soon as power is restored after a momentary power interruption occurs, in addition, have a lifespan of over 40,000 hours.
- This type of lamp requires a special ballast and an increased amount of material in accordance with the size of the lamp power (watts), to 185 W lamps along the 3.5 feet. The large size makes it difficult to get good light control in a reasonably sized equipment.
- Bad color display and the large size of this low pressure sodium lamp makes it popular for use as highway lighting and other places besides industrial lighting or security vanity mirror applications.
- Low pressure sodium lamps are very efficient light sources to provide more light in the same amount of electricity with one type of lamp that has been described above.
Efficiency in converting light energy into electrical light, vanity mirror ability to maintain light output over the life of light bulbs, vanity mirror long life lamp life, warn