Compared with other LED bulbs, SANSI's highly efficient light bulbs can provide 6500 Lumens using only 35-Watts of power, equivalent to 650-Watt incandescent bulbs. Based on 3-hours per day usage, save up to 95% electricity, annual estimated cost $3.83. Adopting high light transmission optical lenses, up to 210 LED chips can not only provide you and your family with the light source they need daily but also provide a healthy living or work environment. SANSI's patented technology replaces the traditional Mcpcb aluminum substrate with a non-conductive ceramic heat sink, directly soldering the LED chip on the ceramic heat sink, effectively reducing the systematic thermal resistance between the LED PN junction and the surface of the heat sink, resulting in faster heat conduction and higher product reliability, making SANSI's bulbs perform with higher light efficiency.