日期：2012年5月28日

what are the best led grow lights in printing

What is the LED printer? In fact, it has been available for some time, the manufacturer uses infrared LED light source, to create an LED array directly to the digital data into the optical information to hit the drum, but the resolution failed with a laser printer was comparable. However, due to the structure of the LED printer is cheap, do not need a laser printer using the focus lens, refraction, lenses and other components, products can be lightweight and inexpensive. Then what are the best led grow lights, LED Printer?

what are the best led grow lights in printing

LED printer print principles and laser printers are similar, they are using optical technology will turn the digital data into light information to hit the drum, and then by the toner, you can print out beautiful the file. LED street light printers have the advantage of more than a laser printer is the structure needed to lay down complex optical structure, the LED printer product volume per pound laser printer is much smaller, and can use simple LED array with optics, LED printer warm-up time is short, direct print mode, reducing the time of the paper road, also reduced the perspective of fine-tuning of reaction time, a substantial increase in the speed of the print output than mine laser printer and inkjet printers are faster, but with the advantages of low distortion and high precision.

In addition to quickly print the advantages mentioned in the previous principle, As the LED printer is less in volume , they will be able to incorporate more complex function in product design, to create a multi-functional commercial affairs. what are the best led grow lights ? LED printer is the same as the inkjet printer using the horizontal feed, which makes using the media more and more space to play.

The other hand, LED printer is able to make small printhead by excellent semiconductor process technology and the characteristics of LED, in fact the LED can cater to print fine degree of product durability, long-term use down, the life of the LED components than a laser printer, what are the best led grow lights ? but also have the advantage of lower power consumption, even with the heat low, the configuration of the cooling components is relatively reduced, not only reduce the production costs of LED, machine-generated noise is also low, the overall improvement of energy-saving effect and the product durability, environmental protection done, regardless of the great effort.

The short term efficient LED lighting squandered, but long-term is a huge opportunity

In the short term, the new efficient led lighting are squandered, but in the long term, this is a great opportunity for LED lighting. It makes avoided the constraints of the electrical lighting within 100 years.

Compared with incandescent and compact fluorescent’s light-emitting and inefficient, the LED Lights has a huge advantage. Compared to conventional incandescent and compact fluorescent lamps, LED may be bring more complex factor, as weel as more interesting and useful lighting pattern. In order to obtain these advantages, they would have to order LED lighting fixtures. LED can provide the adjustable color temperature, brightness and intelligent control, additional features.

Just try to imagine this lighting, it can not only dim, but also select the desired color temperature. In other words, you may want to enhance the light intensity or increase the color of light in the room. Efficient led lighting is the only spectrum lighting with sufficient space-tunable light source. Although this technology is feasible, yet to creat a way to the adjustment with intuitive user interface is challenging. Who are able to design a simple control adjustable color LED lighting will have a unique competitive advantage.

Another possibility is to improve the level of lighting, especially in the office area. The people’s eyes (after 40 years of age) began to lose their ability to focus, even those with excellent eyesight should wear glasses to improve vision when they are at 40 to 50 years. However, in many cases, those people may do not need glasses to improve eyesight where they are at outdoors, because they human eyes will see more clearly in the intensity lighting conditions. When the efficiency of LED street light reach 150lm / W level, to improve office lighting to 1000lx is possible, rather than the current conditions of typical office 300lx.

When people began to consider the constraints of conventional lighting, the opportunity of efficient led lighting will be get. The typical home lighting household would be able to withstand the current circuit of 20A. If all of the ceiling lighting fixtures are replaced with LEDs, a 10A (or even less amps) would be sufficient to provide lighting for the entire house. Moreover, because the LED products is essentially a low-voltage devices, desgin engineers can use almost  any voltage lighting circuits. Converted to 12V or 24V DC system will eliminate the great cost of the wiring on the roof of a large number of standard wiring, especially in the current, the price of copper is much high.

what is a led light bulb with different power supply?

Although the LED is good at energy saving, but the LED street light source can not directly use the utility grid voltage, it must be equipped with dedicated voltage conversion equipment provided to meet the LED rated voltage and current in order to make LED to work properly, is the so-called LED high bay power supply. what is a led light bulb?

what is a led light bulb with different power supply?However, due to a variety of different LED power performance, so choose a suitable, efficient LED special power supply, can be truly revealing the high performance characteristics of the LED light source. Because of the low efficiency of the LED power supply needs to consume a lot of power, will not be able to highlight the energy-saving characteristics of the LED to the LED-powered.

LED power supply according to driving methods can be divided into two categories:
A constant current drive circuit driving the LED is very satisfactory, the drawback is that higher prices. The constant current circuit although not afraid of the load short-circuit, but is prohibited to load completely open. what is a led light bulb?
To limit the number of LED use, because it has the largest withstand current and voltage values.   A voltage regulator circuit to determine all the parameters, the output is a fixed voltage, output current changes with the changes in load.

Second, the LED lights power circuit structure can be divided into six categories:
The conventional step-down transformer:
The advantage of this power is small, the downside is the weight of emphasis, the power efficiency is very low, generally 45% to 60%, reliability is not high, so rarely.
Electronic step-down transformer:
The power structure of the inadequacies of conversion efficiency is low, narrow voltage range, generally 180 ~ 240V ripple interference.

The PWM control switching power supply:
At present, the LED power supply of the PWM control mode is ideal, because this switching power supply output voltage or current is very stable. what is a led light bulb? High power conversion efficiency can generally be as high as 80% to 90%, and the output voltage and current is very stable. LED power of this approach consists of four parts are: part of the input rectifier filter, the filter portion of the output rectifier, PWM regulator control section, the switching energy conversion part. Protection measures, such circuits are well belong to the high reliability of power supply.