GL-E27-011 LED bulb is novel in design, significant in saving energy, convenient and practical, safe and reliable. The white LED light bulb is the most environment friendly and the most energy-efficient lighting source. One of the LED light bulb's notable features is that it can work at a temperature of 150 degrees environment. It uses high-power LED with characteristics of pure color, low in light degradation. LED tube light converts ac directly into dc, which is good for your eyes. It adopts non isolated constant-current built-in power supply and its advantages are that the circuit is simple in design and manufacturing cost is low. The source of white LED light bulb is formed by low-power SMD, and the luminous flux is fully guaranteed in the structural design to ensure the maximum lighting. The drive current of every LED chip is limited to the optimum operating current range to ensure the longer life. White LED light bulb will not produce noise, so it is a best choice for the library and/or the office. LED light bulbs do not contain mercury and lead, so they play an important role in environmental protection. The light source of LED spot light adopts the solid light source and the lifespan mainly depends on the solid LED light source and drive heat dissipation. At present, the lifespan of white LED light source can reach to 50,000 hours. The LED quantity of this type is 9, the power is 11W and the input voltage is 85-265VAC. The color temperature options are 3000K, 4100K and 6000K for your choice. it is suitable for jewelry shop windows, shopping malls, meeting rooms, and exhibition halls.