Help upgrade my 2x18650 Berg xhp50 light

I guess I wont give suggestions as other members will have better ones fitting the criteria you pointed out.
I will only suggest seeing this site: https://hc-lights.fi/

Other than this, Banggood and Gearbest have good options, and there are some discounts provided by some members here:

M4D M4X: M4D M4X deals - Astrolux WP1 and WP2 LEP
freeme: Ended..
Fin17: Archive topic - Banggood & Fin17 / GearBEST's Sale . Rovyvon A5 $15.99 . Convoy S21 $15.99
petemer: ✜Banggood deals≫ NC TUP ⚡Rofis TC1⚡$23.06⚡S41S ★★★ $34.65 BLF GT mini ★ ⚡ Fitorch P25 QUAD LED 26350⚡X1R angle light ★BLF GT70★
bilakos10: ☢ [Bilakos10 Premium Deals] ● Astrolux FT03 SST-40 ● Astrolux A01 UV ● Seeknite X6S ● JCD 8898 Hot Air Station ● SQ-D60
FlashlightDeals: UTorch SF01 price drop to $6.99

Hope this helps :wink: