i noticed that last night the new 4300 sky rays, if they dont perform any better then the first ones rev0 rev1 rev2 i would recomend the TrustFire TR-3T6 Triple XM-L (3x18650) as its cheaper but its truely regulated and should give longer run times with less heat and it does realy well with heat and long run times.
there is a TrustFire TR-3T6 Tripple XM-L 2x18650 thats has a claimed to be 2.5 amp regulated, just 0.5 amp less then the 3 x 18650 and both can run on 2 x 18650,s.
im not trying to rock the boat so to speak or upset the people who have brought the skyrays but these TR-3T6 are truely regulated draw less current over long runs and have better heat soak then a drop in so they should give longer run times and last longer.
lets hope the sky ray 4000 and 4300 have improved and blows the TR-3T6 away i have done some 30 and 45 min running draw test,s on the TR-3T6 if any one is intrested
https://budgetlightforum.com/t/-/3304