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 system 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. Compared with other LED bulbs, SANSI's highly efficient light bulbs can provide 3000 Lumens using only 20-Watt of power, equivalent to 200W incandescent bulbs. Based on 3-hours per day usage, saves up to 95% electricity, the annual estimated cost of $2.19.