After 2011, the LED gradually to enter the interior lighting, this also means that march to civilian families. On the one hand, this is a happy occasion, because the civilian market is very large; the other hand, is a very serious challenge, particularly low because the civilian market requirements of cost, reliability, particularly high. Now leave fully meet the requirements of the civilian market, still a long way, we can say there is still a long way to go.
The most common civilian light is the incandescent lamp, which is our ordinary bulbs. If the LED is to replace incandescent bulbs, it is necessary to develop a in terms of the lamp shape or appearance of similar bulbs and incandescent bulbs, which is often referred to as LED bulb. Imagine, Bulb market is very huge.
One led driver 120w bulb requirements
Because you want to replace incandescent, so at least the following requirements:
1, the brightness should be very
Incandescent usually talk about the wattage rather than talk about the number of lumens. Although the LED Power Supply also can talk about wattage, but due to the efficiency of LED light are still evolving, saying only that the wattage does not mean that its lumen. The most commonly used incandescent lamp wattage of 15 watts, 30 watts, 45 watts, 60 watts, 75 watts and 100 watts. If you talk about the number of lumens, you can use incandescent light efficiency. Incandescent lamp luminous efficiency of 7.5-12lm / W The higher the wattage the greater the efficiency. Listed above, several wattage incandescent relative lumen can list the following:
If using LED Flood light 10W to replace, and can draw the appropriate wattage. However, because the LED luminous efficiency in the rising, it is difficult to give an accurate figure. Assumes the usual LED1, its luminous efficiency of 100lm / W, if the highest luminous efficiency of the LED2 is its luminous efficiency of 130lm / W (warm white light efficiency will be lower than this value). Can be drawn on the wattage of the two luminous efficiency LED. LEDs require constant current source, the constant current source efficiency is assumed to be 85%, In addition, because the LED can not adopt a transparent blister, but only using the milky foam shell. The transmittance of about 85%. They are multiplied together equal to 0.72. After considering the above factors can be drawn and incandescent lamps of equivalent wattage. Can be seen from the table, LED2 in the same brightness can save approximately 10 times the power. It should be of special note. Is the optical efficiency and heat dissipation of the LED bulb, it can not do more than 10 watts, which means that there is only 60-75W incandescent, LED Floodlight 80W bulb can replace. Of course, PAR lamps is another matter (discussed later).
2, the shape to be similar
Typically incandescent pear-shaped, LED bulb should be pear-shaped. This is very easy to do. Incandescent lamp for the all-glass products, LED is difficult because you want to heat the structure of the whole glass. The following will be discussed in detail the structure of the LED bulb.
3, the volume size should be very, because the LED constant current source and heat sink, so this is very hard to do.
4, the weight to be quite the same because the LED Spotlight 30W constant current source and heat sink, so this is very hard to do.
5, lamp holder China in the past are based on the bayonet, after the reform and opening up most of the switch to screw-type and the United States. United States of E26 or E27. This is still very easy to do.
6, the power to be the same, should be 220VAC (or 110VAC), which is no problem.