1,3W led cob D20mm 2,Factory price, quality guarantee 3,Original Epistar/Genesis chips 4,Super low decay 5, 80-100lm,>50000h 3W led cob D20mmThe COB LED has good thermal performance, long lifetime, and lower power loss. Heat dissipation is good and easily manageable. Only about 30% heat of High Power LED.Among different LED components such as high power LED, SMD, dip etc, COB LED is best in less ...