I took a chance and bought a Convoy S21B from ali express:
Ali Express for just under $30. Comes with a 21700 battery. For options, I picked the orange peel reflector and the 12 mode groups. If I lose or break the Convoy, I'm ok with that. But If I lose or break my Fenix PD35, I'm not ok with that.
I'm actually surprised with the Convoy. Build quality seems to be excellent.
The orange peel reflector gives a softer, wider light with no harsh hotspot like the Fenix has.
The Convoy is about 1/2 inch shorter that the PD35.
I chose a mode that has 0.1%, 1%, 10%, 50% brightness with deactivated the memory. So everytime you turn it on, it starts from the lowest brightness.
For the price, you can buy 2 of these Convoys with batteries for the same price of 1 Fenix PD35 without the battery.
The Convoy doesn't come with a pocket clip so it can roll off your desk.
The packaging was terrible, paper envelope was all crumpled but no marks on the light.
Otherwise, I'm satisfied with this $30 Convoy.