400W Equivalent 6000 Lumens Brightest LED Light Bulb, 5000K Daylight E26 A21 …
PATENTED CERAMIC TECHNOLOGY: ‘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 ‘s bulbs perform with higher light efficiency.