Tantra International

Malad West, Mumbai, Maharashtra

We have come up with the special quality Solar Mobile Chargers. These Solar Mobile Chargers are manufactured with the best quality components. Our Solar Mobile Chargers come from the reliable brands and are guaranteed fro safe and long term usage. These Solar Mobile Chargers are economic as well.

Attributes

• Durable
• Efficient
• Safe to use
• Economic

Our clients can also avail from us an extensive range of Solar Power Plants. These plants utilize solar energy for the production of electricity thus results in a very cost-effective solution to our clients. Our Solar Power Plants are highly appreciated by our clients for their easy construction, high capacity and low maintenance.

Features

• Easy construction
• Can be erected to target species only
• Low maintenance
• All domestic and wild animals can be controlled in an economic way
• Ease strip grazing and back fencing
• Encourage additional subdivision by giving increased production
• Easy modification of the system according to the animals type
• Aesthetically pleasing
• Discourage trespassers and predators
• Harmless as it give a short & sharp but safe shock to the intruder
• Perimeter protection

We bring forth the superior quality Solar LED Lanterns. We procure these Solar LED Lanterns from the reputed manufacturers and our Solar LED Lanterns are guaranteed for high efficiency in terms of light intensity and long term usage. Our Solar LED Lanterns are available at market leading prices.

Applications

• Emergency Lighting for Homes
• Lighting for Security Staff
• Emergency Lighting for Shops
• Camp Lighting
• General Inspection
• Construction Site Labour Camps
• Maintenance Work Lighting
• Hostels and Dormitories
• Restaurants
• Resorts
• Hospitals

Specifications

• Lamp Type : 36 Ultra Bright LED
• Wattage : 3W
• Solar Panel : 6V - 5W
• Battery : 6V 4.5AH Dry cell
• Controller : In-built with Dusk-Dawn Control

We are the main supplier of this product.

We are the leading manufacturers, exporters and supplier of this products.

Our Solar Dusk Dawn System is an energy saving device used for automatic switching of street lights making proper use of grid power and increasing the life of the lamps by operating the street lights from sunset to sunrise. The Solar Photovoltaic (SPV) Dusk Dawn System is highly reliable and efficient for years of continuous flawless operation. A system can support BS many as 500 lamps depending upon the lamp characteristic. The operation is based on sensing the ambient light level which actuates the electronic controller to switch ON the street lights in the evening and switch them OFF in the morning. The sensor is hermetically sealed weatherproof and maintenance free, thereby ensuring reliability even in adverse atmospheric conditions.

The system has the inherent advantage of automatic setting of switching timings irrespective of whether it is winter or summer thus making it a totally unmanned operation. Once set for a particular light level, it remains unchanged through out the year. Features

• Automatic switching through unmanned operation
• Optimal use of grid power
• Hermetically sealed weather proof and maintenance free large area sensor
• Energy saving estimated up to 20%
• Highly efficient, reliable and economical
• Relief from seasonal setting required in mechanical timers
• On-line service facility.
• Solid-state electronic controller, free from mechanical wear & tear
• Protection against faults like line to line, line to neutral & line to earth
• Manual by-pass in case of system failure

Specifications

• Housing Kiosk type weather proof metal enclosure.
• Sensor Hermetically sealed Solar Photovoltaic Module.
• Electronic Controller Solid-state controller for automatic switching.
• Protection & Safety Against faults like line to line, line to neutral and line to earth.
• Electrical Switchgear As per rated capacity.

Customers can avail from us a high quality range of environment friendly Solar Cells & Modules. These Modules offer a stable performance for multipurpose outdoor applications. Manufactured using high quality raw material, these are highly resistant to the severest climatic conditions. We offer an unmatched 25 years warranty on these products for power output. These technologically advanced products feature bypass diodes, which reduce the power loss caused by shade. The modules use high efficiency 125 mm square mono-crystalline silicon solar cells with over 14% module conversion efficiency.

Material

• Monocrystalline Silicon
• Polycrystalline Silicon
• Amorphous Silicon

Photovoltaics: Solar Electricity and Solar Cells in Theory and PracticeThe word Photovoltaic is a combination of the Greek word for Light and the name of the physicist Allesandro Volta. It identifies the direct conversion of sunlight into energy by means of solar cells. The conversion process is based on the photoelectric effect discovered by Alexander Bequerel in 1839. The photoelectric effect describes the release of positive and negative charge carriers in a solid state when light strikes its surface. How Does a Solar Cell Work?Solar cells are composed of various semiconducting materials. Semiconductors are materials, which become electrically conductive when supplied with light or heat, but which operate as insulators at low temperatures. Over 95% of all the solar cells produced worldwide are composed of the semiconductor material Silicon (Si). As the second most abundant element in earth`s crust, silicon has the advantage, of being available in sufficient quantities, and additionally processing the material does not burden the environment. To produce a solar cell, the semiconductor is contaminated or "doped". "Doping" is the intentional introduction of chemical elements, with which one can obtain a surplus of either positive charge carriers (p-conducting semiconductor layer) or negative charge carriers (n-conducting semiconductor layer) from the semiconductor material. If two differently contaminated semiconductor layers are combined, then a so-called p-n-junction results on the boundary of the layers. At this junction, an interior electric field is built up which leads to the separation of the charge carriers that are released by light. Through metal contacts, an electric charge can be tapped. If the outer circuit is closed, meaning a consumer is connected, then direct current flows. Silicon cells are approximately 10 cm by 10 cm large (recently also 15 cm by 15 cm). A transparent anti-reflection film protects the cell and decreases reflective loss on the cell surface. The usable voltage from solar cells depends on the semiconductor material. In silicon it amounts to approximately 0.5 V. Terminal voltage is only weakly dependent on light radiation, while the current intensity increases with higher luminosity. A 100 cm silicon cell, for example, reaches a maximum current intensity of approximately 2 A when radiated by 1000 W/m. The output (product of electricity and voltage) of a solar cell is temperature dependent. Higher cell temperatures lead to lower output, and hence to lower efficiency. The level of efficiency indicates how much of the radiated quantity of light is converted into useable electrical energy. Different Cell TypesOne can distinguish three cell types according to the type of crystal: monocrystalline, polycrystalline and amorphous. To produce a monocrystalline silicon cell, absolutely pure semiconducting material is necessary. Monocrystalline rods are extracted from melted silicon and then sawed into thin plates. This production process guarantees a relatively high level of efficiency. The production of polycrystalline cells is more cost-efficient. In this process, liquid silicon is poured into blocks that are subsequently sawed into plates. During solidification of the material, crystal structures of varying sizes are formed, at whose borders defects emerge. As a result of this crystal defect, the solar cell is less efficient. If a silicon film is deposited on glass or another substrate material, this is a so-called amorphous or thin layer cell. The layer thickness amounts to less than 1m (thickness of a human hair: 50-100 m), so the production costs are lower due to the low material costs. However, the efficiency of amorphous cells is much lower than that of the other two cell types. Because of this, they are primarily used in low power equipment (watches, pocket calculators) or as facade elements. Level of efficiency in % Lab

• approx. 24
• approx. 18
• approx. 13

Level of efficiency in % Production

• 14 to17
• 13 to15
• 5 to7

From the Cell to the ModuleIn order to make the appropriate voltages and outputs available for different applications, single solar cells are interconnected to form larger units. Cells connected in series have a higher voltage, while those connected in parallel produce more electric current. The interconnected solar cells are usually embedded in transparent Ethyl-Vinyl-Acetate, fitted with an aluminum or stainless steel frame and covered with transparent glass on the front side. The typical power ratings of such solar modules are between 10 Wpeak and 100 Wpeak. The characteristic data refer to the standard test conditions of 1000 W/m solar radiation at a cell temperature of 25 Celsius. The manufacturer's standard warranty of ten or more years is quite long and shows the high quality standards and life expectancy of today's products. In addition to optimizing the production processes, work is also being done to increase the level of efficiency, in order to lower the costs of solar cells. However, different loss mechanisms are setting limits on these plans. Basically, the different semiconductor materials or combinations are suited only for specific spectral ranges. Therefore a specific portion of the radiant energy cannot be used, because the light quanta (photons) do not have enough energy to "activate" the charge carriers. On the other hand, a certain amount of surplus photon energy is transformed into heat rather than into electrical energy. In addition to that, there are optical losses, such as the shadowing of the cell surface through contact with the glass surface or reflection of incoming rays on the cell surface. Other loss mechanisms are electrical resistance losses in the semiconductor and the connecting cable. The disrupting influence of material contamination, surface effects and crystal defects, however, are also significant. Single loss mechanisms (photons with too little energy are not absorbed, surplus photon energy is transformed into heat) cannot be further improved because of inherent physical limits imposed by the materials themselves. This leads to a theoretical maximum level of efficiency, i.e. approximately 28% for crystal silicon.

We have come up with the high quality Battery Making Plants. The Battery Making Plants that we offer are widely used in the automobile industry. These Battery Making Plants are procured from the trusted vendors and are comprised of superior quality components. Our Battery Making Plants are extremely economic too. We provide solution for automobiles battery plant (Heat Sealing Plant) with smelting of lead, furnace jar, lead grey oxide plant, integrated solution for battery making.

Features

• High performance
• Low maintenance
• Economic
• Easily operated

Applications

• Mainly automotive Battery Making Plant
• Battery Assembly Plant

Tantra International would like to introduce itself as one of the most promising Exporters and Suppliers of Solar Water Pump based in India. Designed to precision, the Solar Water Pumps available with us comprises of three basic components: Solar Panel, Pump assembly and Power Controller. These components are properly fitted and installed, in order to assure a flawless performance. Widely acknowledged by the clients, the Solar Water Pumps provided by us are superior in terms of quality, designing and durability. The clients can avail the Solar Water Pumps in diverse specifications, at budget friendly prices. Attributes :

• Excellent quality
• Reliable performance
• Smooth functioning
• Longer service life

Solar Water Pump Comprises Of :

• Solar Panel
• Pump assembly
• Power Controller

Range Available :

• DC Surface Pump
• AC Submersible Pump without Battery
• AC Submersible Pump with Battery