5

I suspect Yajiamei doesn’t make it’s product. It’s more like an upper stream “distributor”. Yajiamei is one of few AE seller with a well organized store. And the best thing about Yajiamei is: most of the product description includes technical drawing. But you’ll notice the same slogan keeps repeating over and over again in almost all item’s description:

Effectively overcome some of the LED spot yellow halo phenomenon, soft lighting, spot uniformity, no stray light, no black hole, no shadows or dark areas

Cheers,
Clemence