https://www.aliexpress.com/item/10Pcs-l ... autifyAB=0
Try this link.
Alibaba is a place where you buy directly from manufacturers. most of the time they can't be bothered with some small fry like us.
So i recommend going to Aliexpress, since that place is more like the chinese Amazon.
But you can also find a holder on ebay at higher cost. I prefer it since they accept PayPal.
https://www.ebay.at/itm/26650-strahlend ... SwsFVaqRke