I purchased this light here:
http://www.manafont.com/product_info.php/skyray-sr198-t6-3mode-sidewaymagnetic-switch-diving-flashlight-black-18650-p-11965
My light is identical except it has a glow oring at the lens
Here is a review
(different seller, generic version) Review: Magnetic control diving light (Cree XM-L T6 | 1 x 18650)
My own comments on the light are here
The light is unused aside from testing. The finish is perfect except one tiny mark that is too small to show in a photo.
A few tweaks I made:
-added arctic ceramique between the pill and the aluminum ring that compresses it into place
-replaced the stock LED insulator with one that has a centering ring
-added copper braid to tail spring
-lubed tail threads and sliding magnetic control
buyer pays actual shipping cost and decides if they want tracking or not - USPS only