The Convoy S2+ with SST40 is brighter (2000 lumens), gets hot faster and is generally a nice flashlight.

The Convoy S2+ with SST20 has around 1000 lumens, a bit more throw and less heat. 4000K and 3000K are with 95 CRI. They will have only 700 lumens but point out the brown and red hues and look better outdoors.

These lights are a good point to start with. If you want similar high quality and simple but nice flashlights approved by BLF :wink: I would have a look at Emisar, Sofirn, Lumintop and Fireflies.