IACS CO., LIMITED (Yiwu Fuwei e-commerce firm)

1. The brightness should be quite

Incandescent lamps usually only speak wattage and not lumens. Although LEDs can only talk about wattage, but because the luminous efficacy of LEDs is still evolving, only wattage does not represent its lumens. The most common wattages for incandescent lamps are 15 watts, 30 watts, 45 watts, 60 watts, 75 watts, and 100 watts. If you want to talk about lumens, you can use the luminous efficiency of incandescent lamps to calculate. The luminous efficiency of incandescent lamps is 7.5-12 lm/W. The greater the wattage, the higher the efficiency.

Assume that the current usual LED1 has a luminous efficacy of 100 lm/W. If the LED 2 with the highest luminous efficacy is used, the luminous efficacy is 130 lm/W (the warm white light effect will be lower than this value). It is possible to derive the corresponding wattage for these two efficacy LEDs. However, because the LED requires a constant current source, and the constant current source has a certain efficiency, it is assumed to be 85%. In addition, since the LED cannot be used as a transparent bulb, only a milky white bulb can be used. Its light transmittance is about 85%. The multiplication is equal to 0.72.

After considering the above factors, you can get the wattage equivalent to incandescent lamps. As can be seen from the table, LED2 can save about 10 times the power at the same brightness. There is one point that needs special explanation. It is impossible to achieve more than 10 watts from the current efficacy and heat dissipation of LED bulbs, which means that there are only LED bulbs that can replace 60-75W incandescent lamps. Of course, the PAR light is another matter (discussed later).

2. The shape should be similar

Usually incandescent lamps are pear-shaped, so LED bulbs should also be pear-shaped. This is very easy to do. However, incandescent lamps are all-glass products, and LEDs are difficult to adopt an all-glass structure because of heat dissipation. The structure of the LED bulb will be discussed in detail below.

3. The size should be quite

Because LEDs require constant current sources and heat sinks, this is very difficult to achieve.

4. The weight should be quite

Also because LEDs require constant current sources and heat sinks, this is also very difficult to achieve.

5. The lamp head should be the same

In the past, most of China used bayonet type. After the reform and opening up, most of them switched to the same screw type as the United States. It is the American E26 or E27. This is still very easy to do.

6. The power supply should be the same

It should be 220VAC (or 110VAC in the US), which is no problem.

Yiwu Fuwei e-commerce firm (IACS Co., Limited) is a very professional Led manufacturer who produces high quality outdoor led light. Our popular products are solar led lights, UFO lights, underwater lights and so on. If you have any question about the led product, please feel free to contact us.