This is a 220V Alpha DOB LED PCB; this PCB has two main IC, which are used to drive the full LEDs and one another IC, known as a bridge rectifier. MB10F IC is a Bridge rectifier used to rectify the AC input signal into DC Signal. This IC has four pins, and the polarity has marked on it. This PCB’s operating voltage is 220V AC power supply. FM8301SS is a non-isolated step-down LED driver IC. It’s 8SOP, but the no of pins has seven used to drive the LED. It has 2;2microfarad electrolytic capacitors it’s used to store charges for a bit of time 400V. It has an inductor. Components: Capacitor-2.2 Microfarad, Inductor, FM8301SS, MB10F, ES1J. Features: Direct AC Source It has a total of 10 LED It does not need any external driver circuit It has an inbuilt driver IC SPECIFICATIONS: Type DOB LED PCB Input Voltage 220VAC No of LEDs 10 Colour White LED Diameter 40mm Power 9W Wire Mounting Diameter (Small hole) 3.0mm Mounting Diameter of (large Hole) 4mm Thickness 13mm Connection Point Line and Neutral No. of Connecting Point 02 Country of Origin China