Street lighting Solar

To ensure sufficient visibility on the open part of the adjacent territory of enterprises, private houses and villas set outdoor lighting. Despite the widespread implementation of measures aimed at reducing the costs to ensure visibility in open areas, electricity costs still make up a significant amount. Therefore, the actual method of reducing electric power consumption is street lighting solar powered. Such installations are increasingly coming to replace the classic models, as have a number of advantages in operation.

Advantages and disadvantages

The benefits of street lighting with solar batteries include:

• Full autonomy - each street light does not depend on the health of the electrical network, nor the status of other lighting elements installed on the site;
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• Mobility - Lighting Solar does not require stationary placement, due to lack of power supply wires can be transferred from one place to another at the request of the owner.
• Easy installation - All work on the installation and configuration can be done with their own hands without the involvement of specialists.
• compact dimensions - allow you to quickly move them to the desired point, do not require the involvement of specialized equipment for the transport and delivery.
• adjustable parameters - provide the ability to customize the time settings and turn on and off street lighting automatically, without human intervention.
• The high degree of electrical safety - due to lack of power supply wires and electrical connections are eliminated the threat of injury electrocution of people.

Also, all solar-powered device in a wide range, which allows their use as decorative elements for decorating section design.

The disadvantages of outdoor lighting with solar batteries include:

• The dependence of the autonomous lighting on external factors - and in cloudy weather greatly reduces the intensity of the charging battery during precipitation, because of which decreases productivity.
• duration of work It depends on the capacity of the battery, which decreases with the passage of time.
• unstable operation - electric lamp brightness changes from the start of lighting devices until disconnection as discharge electric power source.
• Under high and low temperature Batteries provide a malfunction.
• Due to the mobility of some equipment for street lighting solar powered can be dismantled by attackers effortlessly.
• Require constant care - when clogged solar panels or a roll of a significant layer of sediments is reduced productivity, due to which the surface must be cleaned periodically.

To address the shortcomings of lighting devices have been developed and implemented a variety of measures: connection powerful battery, the unification of all devices on solar cells in a single system, the use of allocated solar power for food and others. But such actions, in turn, significantly reduces the portability and makes its own adjustments to their work.

The device is a solar-powered lamp

Structurally, street lighting devices composed of these elements:

• housing - may have a different shape, size and method of installation, equipped with a bracket for hanging or supporting structure for installation in the ground;
• light source - due to low consumption and simplicity in the LED lamps are installed most often;
• plafond - it includes a diffuser for the light flux direction, and an outer cover to prevent the influence of atmospheric factors on itself LED lamp;
• Accumulator battery - it is designed for accumulation of electric energy from the sun for later consumption for lighting at night;
• solar module - is used to convert solar energy into electrical energy with a view to its subsequent transmission to the consumer;
• Light sensor - responds to the change of time of day, and enables or disables the power LED lights.

If you do not need a constant illumination area, there are devices on the solar Powered with integrated or work in conjunction with a motion sensor. Such model will include only lights when a motion in a certain area, and the set time after aging is shut off light.

Operating principle

any device street lighting It works on the same principle: The sun's rays falling on the solar cells generate electric energy production, which through diode VD is supplied to the battery terminal and the emitter of the transistor, as shown in Figure below.

In the daytime the light sensor under the influence of natural light acts as a current-limiting resistor, the locking chain of LED panel. Nightfall cell stops generating electricity, but due to the diode VD accumulated electricity in the battery capacity is not wasted on the reverse bit.

The light sensor circuit ceases lock power LEDs transistor opens and current flows through the circuit battery - the emitter and collector of the transistor - LED panel. With the advent of the dawn of disabling the supply circuit and charging circuit inclusion occur in the reverse order.

This is the simplest scheme of work, in practice there are street illumination devices with more complex automatics and logic operation, and also with an inverter device for converting DC to AC.

Selecting fixtures on solar batteries

Because of the enormous diversity represented on the market lamps with solar panels is quite easy to get lost when you select the desired model. Therefore, we consider the most relevant selection criteria, are worth paying attention to the purchased equipment meets your expectations.

Power

Determines the intensity of the illumination area and space, but in view of the design features of the source. As already stated, it is the most efficient LED lamp due to the ideal ratio of light flux generated by power consumed. Therefore, pay attention not only on the power, but also on the level of illumination, as weak models intended to highlight the track and the most powerful for general lighting and the surrounding areas of country areas. If you intend to use incandescent or fluorescent, should take into account the ratio of power and luminous flux between them.

Table: matching power in watts for different types of lamps

LED	fluorescent	incandescent
1	3	15
3	7	35
5	11	50
7	15	70
9	19	90
12	25	120
15	31	150
18	36	180

protection class

This parameter determines the stability of the lighting device to external factors. The passport information it is referred to as the abbreviation IP with two digits, the first of which indicates the degree of protection against fine dust and debris, while the second indicates the tightness of the luminaire and penetration resistance moisture. The best option considered street lighting device with protection class IP44 and from above. The specific parameter is better to choose according to the climatic conditions of the area in which the lamp is mounted on the solar cells.

housing material

The housing may be made of metal, wood, glass and polymer. Depending on the model, there are both products of the same material, and combined. Choosing a particular lighting unit Solar, better start from the practical model - material housing for the street or the garden lights must be durable and resistant to mechanical impacts. If this miniature model, the location of which significantly limits the access to them, you can install lights with glass lampshade.

The type and method of installation

According to the type and method of installation of street lighting fixtures are divided into such categories:

• Ground - are used for lighting paths, decorative lighting, landmarks. A feature of such models is submerged bayonet, which dug into the ground, allowing you to fix the device. Different leg length and the ceiling height location.

  

• Wall lamp - used for decorative lighting and lighting for houses adjoining areas. installation difficulty lies in choosing the proper position in relation to the cardinal points, to a solar cell the maximum duration was in the light.

  

• Suspended - may be placed on any structural elements even with rigid fixation (beams, brackets, etc.), even with a flexible (cables, extensions, etc.).

  

• Recessed - form a unitary structure with any construction or design elements (stairs, pillars, sidewalks, etc.)

  

TOP -10 the best fixtures on solar cells

• URANUS - equipped with adjustable mounting bracket, remote control;
• Beetle - sredeny capacity model with a high degree of protection;
• Garden ball - groundwater model;
• Eglo 48496 SOLAR - low power lighting device with stainless steel housing;
• Eglo 98187 PALIZZI - model with a remote solar panel;
• Lutec Diso 6906702335 - with motion sensor and original design;
• Lutec Bread 6901501000 - with motion sensor;
• Globo 33371 SOLAR, Globo 33014 SOLAR, Eglo 47856 - brilliant representatives decorated by fairy-tale characters.

use places

Depending on the location and street lighting devices running tasks are divided into such categories:

• park lights - provide light large areas have a high leg to stand at the bottom.
• Street lights - Designed for street lighting, suspended or mounted on poles and supports, the structural elements of buildings, etc.
• for illumination arbors, terraces, verandas and other semi-open buildings located on the street.
• garden lanterns for lighting tracks - are not the only indicators of the pavement, but also provide sufficient visibility to be guided by them in the dark.
• decorative - are intended for decoration and adjoining gardens.

photo ideas

Among the existing models of lighting devices with solar batteries, many of which are widely used for the decoration of the individual design of the territory and the creation of the area of ​​the atmosphere of coziness. Here we look at some of the most interesting ideas for the installation of street lighting lanterns.