I ordered 2 pieces. One bulb stopped shining after 6 months, unbelievable! And this bulb is the most expensive I ever bought. Now replaced the bulb with the second from the same order and will see how this one last.
The customer service center doesn't offer refund due to 30days warranty which is NOT CORRECT as I agreed here with UK policy - means EU warranty regulations.
Don't buy this product, it's not worth the money.
2nd bulb the same very bad quality - stoped working after 6m too.