This is a great product when it works. Very bright light, good color and spread, high efficiency. Unfortunately the first 3 I received in the first box (of 4) were all DOA. I actually gave them up and was ready to return them when I decided to try another box (I ordered 4 boxes of 4). They all worked straight away. In fact, all of the other 13 bulbs worked. I figured it might be a problem with the transformer's minimum load, so I took a working circuit and swapped out the working lightbulb for a non-working one, and it still didn't work. All in all if you can get a good box this is a great product.
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