When I bought, I read a lot of reviews that there are emitters either sharp or osram or Chinese of poor quality, depending on the model. The price also depends on these emitters! ! With Chinese it is naturally cheaper. I bought mine for 10.000 in the hope that there will be Sharp diodes and it will shine normally, but it looks like I was wrong, most likely the seller simply re-sticks stickers from a more expensive model to a cheaper one, and sells more expensive ones with bad diodes. I would understand and if I wanted to save money and pay less in advance knowing that I would buy China. But why deceive people?