Electric charges can be

Answer 1

I always have colleagues complain to me now, the more wages grow, the higher prices rise, particularly electricity high unacceptably, when sitting at home, nothing to do, just leave the lights on for a month to ten at night, not to mention the use of household appliances,

Indeed, lighting accompany us through the long night in our daily life, thanks to Edison invented the electric light bulb! However, with the progress of science and technology, we seek to improve the living, lighting are not only used in our life, it is also used apply to the industrial and commercial fields, increased global pollution have raised people's awareness of environmental protection recent years, we need more environmental protection and energy saving lamp, LED lamp emerge as the times require

What is the LED lamp, it is a new energy saving and environmental protection technology, lighting effect superior to consume less power is better than ordinary incandescent lamp , there are many kinds of LED lights, LED flood light is a relatively wide range of applications

LED flood light, just as its name implies, is the lighting range of a lamp, really this is his more obvious than other advantages of LED lamps, the LED flood light as products of electric light source has been recognized by more and more people, also has been applied in many fields. Its main features are as follows:

1, long service life: incandescent lamps, fluorescent lamps, energy-saving lamps in general, and other gas discharge lamp has a filament or electrode, but on the sputtering effect of filament or electrode is an inevitable component limiting lamp life. High-frequency electrodeless discharge lamp without or less maintenance, high reliability. The service life of up to 60000 hours (10 hours per day according to the calculation, life can reach 10 years or more). Compared with other light: the incandescent lamp 60 times; 12 times the energy saving lamp; fluorescent lamp is 12 times; 20 times the high pressure Mercury lamp; long life light to greatly reduce the repair and replacement times of trouble, saving material cost and labor cost, and can ensure long-term positive often use. Because the floodlights no electrode, is to rely on the principle of electromagnetic induction and fluorescent discharge combining theory and light, so it does not necessarily limit the life of components. The service life of only depends on the quality of electronic components, circuit design and the foam manufacturing process, the general life of up to 60000 ~ 100000 hours.

2, energy-saving: compared with incandescent lamp, energy saving up to 75%, the luminous flux and luminous flux 500W incandescent roughly the same as floodlight 85W

3, environmental protection: it uses solid amalgam, even if broken will not cause pollution to the environment, there are more than 99% recyclable rate, is the real environmental green light source.

4, no stroboscopic: because of its high working frequency, so as "completely without stroboscopic effect", will not cause eye fatigue, eye health protection.

5, good color: color index greater than 80, soft color, showing the natural color of illuminated objects.

6, color temperature: choose from 2700OK to 6500OK by the customer according to need, also can be made into color lighting, decorative lighting for garden.

7, a high proportion of visible light: in the emitted light, visible light rate is over 80%, the visual effect is good.

8, without preheating. Can immediately start and restart, multiple switch does not have a normal charged electrode discharge lamp light recession phenomenon.

9, excellent electrical properties: high power factor, low current harmonic, supply constant voltage power, the amount of light output constant.

10, installation adaptability: can be installed in any position, not restricted.

The lighting requirements when the reference scene or object than the strong background of others, is designed for lighting a scene or the light projector

The shot with the bulb into large reflecting umbrella, for use as diffusion source of high brightness. Although the interior lighting is indispensable, but for the average amateur indoor Photography, also can be a good source of lighting effects.

Perhaps, you still can't find good lighting facilities to illuminated your large shopping malls, perhaps you are a housewife worried about every high electricity maybe you could not find environmental protection and energy saving illumination facilities as a administrative city construction of the government officials, perhaps you are puzzled by the lamp complex installation. As long as you use the LED flood light, these problems must be smoothly done or easily solved.

Shenzhen Lead Opto-Technology Co. Ltd is a professional manufacturer of LED lighting, mainly produce LED High Bay Light, LED Flood Light, LED Panel,LED Ceiling Light etc with OEM&ODM service. As an ISO 9001:2000-certified factory, we can meet the strict standards of CE, ROHS, FCC certificate, these strict producing standards guarantee our products distribute smoothly both in domestic and international markets.

Answer 2

Electric charges can be positive or negative in nature, with like charges repelling each other and opposite charges attracting each other. The unit of electric charge is the Coulomb, and it is a fundamental property of matter. Charge is conserved in isolated systems.