Searching the internet for information on the specifications of LED lamps, did not find the description of all characteristics, all given only basic. Unlike incandescent bulbs already contain electronic components, switching current regulators, capacitors, diode rectifiers. Some versions can be mounted motion sensor and control with the remote control. That is, it has become an electronic lighting device suitable for repair.
- light flow;
- power consumption of electricity;
- the color temperature of light;
- socket type;
- temperature range at which it may operate;
- degree of protection;
- life time;
- supply voltage;
Certainly not enough to know the parameters, there are other subtleties. Therefore, you should read my recommendations, how to choose LED lamps for home.
1. Luminous Flux
The most important technical characteristic is the luminous flux, which it emits is measured in lumens. In the era of light sources with filament value of the luminous flux is almost never used, and the measured power consumption. Currently an average equivalent LED consumes 10 times less power.
Earlier incandescent sources provide 12-14 lumens per watt, and now this figure is 80-190 lumens per watt. Efficiency depends on the manufacturer, there are:
- diodes unknown in China, which produce 70-80 lumens per Watt;
- proprietary Chinese, Japanese, European 110-120 lumens per Watt;
- super-bright, often made by COB technology that gives 180-190 lumens to watts.
Table relation LED lamps and bulbs
|Power, W||LED, W||The flow of light, lumen|
2. Power consumption of electricity
Power consumption is composed of LEDs and drivers. On the driver has to 1-2 watts. If you buy Chinese-made or unknown domestic producers, it is often Leda can be used very poor, usually 3-4 weaker brand.
For example, 60 cheap SMD 5730 consumes as much as 20 pieces of the same, just branded CREE, Osram, Samsung.
3. The color temperature of the light
The scale of color temperature
Light is divided into 3 types:
- White, as a normal daylight;
- warm white as the light from ordinary incandescent;
- cool white light with a bluish tinge.
4. Socket Type
The most common is the E26 and E14. There are other, mainly for spotlights and designed for 12 volts, it GU4, GU5.3, GU10. In the basement of GU type numbers indicate the distance between the contacts in millimeters, respectively, GU10 is the distance between contacts 10 mm.
The lamp sockets for home
A separate group consists of G5, G13, G23, G24, which are used in fluorescent lamps. In order to reduce investment in the refurbishment of lighting, in the form of fluorescent LED available. For this filling is removed Ballasts fluorescent luminaire housing remains the same.
Before buying check in advance base. Even once I was able to buy 10 shares with E27 instead of E14.
5. Operating temperature range
When buying look at the operating temperature range. If the operation will take place at a warm or cold conditions, such as outdoors at -35 degrees or in the sauna, where the plus 90-100 degrees. That this must be stated in the passport lamp, and then it will be trouble-free and guaranteed to work in these conditions.
6. Coefficient of ripple
I think this is the second most important technical characteristics. In normal operation, this parameter was always the same. This indicator is most manufacturers do not mention because of expensive light bulbs this is all right, and usually buy low. The importance and intricacies of I described in the article «Why LED lamp flashes .»
There are several levels of protection against humidity, moisture, dust. It is listed on the package normally. So that you do not understand the intricacies of marking, just ask the seller. Inconsistency level of protection and conditions of use will lead to premature failure.
8. Life time
The life of the modern budget svetodiodok declared in 20 — 50 thousand hours, and depends on the installed LED components. Modern I think of SMD5630, previous have the worst performance. Recent development of the Japanese and European manufacturers will help keep up to 100,000 hours. But this does not mean that the lamp stops working, it will lose its brightness by about 30-40%.
9. Supply Voltage
Power supply voltage is usually 12 and 110 volts. If you are buying in a foreign online store, such as the Chinese, be sure to specify the type of power you are looking for. The seller sees that you are from Poland, but often they can send you to a voltage of 110 volts.
10. Case dimensions
It is not that characteristic, rather a note. Here operates a simple rule, the brighter the light, the longer it must be. Compare the size, similar to a conventional hectare (100W), you can see «LED lamp, 100W analogue». Less powerful to be proportionally less. Before buying, measure light, which were incandescent, otherwise, many are outraged that eats up a large part of the ceiling light, or ugly sticking out of it. Seven times estimate, once buy. In 2015, there were 15W model, which body size as 7-8 watts, wrote a letter to manufacturers, why they did not overheat. Producer’s letter did not answer may have something to hide, but they refer to the use of ceramics from aluminum nitride.