The first distinction between brightness and wattage
Buy LED bulbs, consumers need are brightness, not wattage. Old habits is based on wattage as criteria. Actually, the brightness is measured in lumens (LM). Traditional lamps because of the technology and materials in a single, has a wattage when the unit. But to LED lighting era, due to the manufacturers technical strength is different, then the wattage when the unit would lead to chaos, unable to differentiate between them.
Second color temperature
LED light bulbs is another important feature of color temperature. We have often heard about LED light shines on the skin, skin looks red or LED light color-white or blue, this is the consequences of the color temperature is too high. General says yellow color temperature is about 2700k in our daily life, white light is 5000k. The higher the color temperature, color is white to light blue. Many manufacturers use Gao Sewen (6000K) LED manufacturing light bulbs, LED with high color temperature better efficiency, high brightness is relatively easy, but the downside is that color looks uncomfortable.
Third life and heat dissipation
General consumers often hear LED lamp life is very long, but most consumers may not feel, and some light bulbs broke in less than a year. Which is why the poor in cooling. LED bulbs life expectancy depends on the LED and the power drive. LED is sensitive to heat, high temperature, brightness dimmed, life will be shorter. Power drive, temperature increases, efficiency is low, life expectancy is shorter. General thermal design is not good, power drives will soon be burned, power drives a power LED light bulb does not light naturally.
