Hi,
This is one of the cheapest 7w led lamps(230Vac) that I could have found, I was curious what is inside, it's just a MB10F bridge a 47 ohm series resistor and a 390 ohm series resistor and 7 1W led, there is one 3 pin package inside the loop, is it a constant current one!? do you recognize it? it's marking is J2101S, is it something like LM317 a cheap chinese version?