I would go for a Convoy C8 too, but i prefer the simple 4 group Nanjg 105 driver with 8x 7135 (2.8 Amperes) and group 3 ‘low - mid - high’
I would get a matte black one with XP-L HI 3A tint.
http://www.gearbest.com/led-flashlights/pp_356677.html
Look here for a coupon code:
GearBEST's Sale . Rovyvon A5 $15.99 . Convoy S21 $15.99 which will get it down to $16.19 :+1:
Cheaper still:
http://www.gearbest.com/led-flashlights/pp_102103.html?lkid=10350845
with XM-L2 for 13½ bucks with coupon code.
Unbeatable prices me thinks. 
The XM-L2 one would be nice with an OP reflector though, and the 1A tint is too cold for me.
Both of those lights come with the 3/5 mode driver though, which blinks once in low mode to switch between the 2 groups.
my 2 cents…