looks like a good product ,, light tested empty gives a little stronger light than a regular light bulb considering how many diodes there are ,, it remains to see the real result and duration ,, delivery took over 3 months and a couple of days
all fine, as described. lamps have a diode bridge, so the polarity doesn't matter. power consumption is ~4W, brightness at a good level. arrived fast. recommended seller. thank you.
one LED arrived broken, but it still works.