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What is LED lampa?

The greatest difference of light sources and LED bulbs is that the LEDs directly
convert current into light. In ordinary light bulb heats the filament, which then emits light. Light is thus a by-product. A large part of the energy converted to heat rather than light, and thus lost. In addition, the radiant heat makes the filament burn through quickly. In the LED lampa is virtually no heat, hence, they consume about 20 times less power and have a much longer life. Specifically, this means that the LED can operate continuously for 11 years. If you use 40 days a year for three hours a day, its life span 792 years.

What are the drawbacks?

Who first uses the LED lampa , will be surprised at how unusual the emitted light. He seems to be much colder and diffuse. LEDs can not shine very far away - at a considerable distance, and therefore adapted to dim light. In this area, but much more evenly distributed light and pleasant. With LED lights you can walk in darkness, to run, but the read pointer within 5 meters in the dark will be problematic, because the LED lampa is difficult to focus. If you sit in front of a person with LED lampa, the light is too bright and will be blind.

What light is right?

In principle, we can say that the lamps are equipped with LED lampa light sources
are suitable for most situations. However, we must pay attention to the fact that the lantern had been inserted and the quality is sufficient power LEDs. In direct comparison the difference is obvious. Another plus is light, if not all diodes are included at the same time, because with a sufficiently powerful lamp for reading at night in a tent rather 1 or 2 LEDs. With new batteries, lights can be too bright when the light is reflected from the white paper.

Who is often found in mountainous terrain, and road markings should look for, he chooses a combined lantern, in which the LED lampa technology is combined with an incandescent lamp or a xenon lamp. It is true when using such models need to have a backup set of batteries, from which can be waived if you use LED flashlight with fresh batteries. A close look at the new headlamps can be found some differences: there are large and very bright models, minimalist genius heaped with adjustable brightness and / or include incandescent,. To know that they can actually, we investigated the different characteristics in the laboratory and in practice. First, of course - the brightness of LED lampa lights, as well as with new batteries and batteries with a capacity of escaping. Brightness, we measured in Lux, to obtain comparable figures. Subjective practical test showed that at night hikes or while the tents, according to the journal should be about 5 Lux. To read enough of 0.2 Lux. With new batteries, particularly distinguished model with a large number of diodes. Such as T61 (6 LED) and 8 LED). The sensor showed in both cases more than 55 lu.