Skip to content

Sofirn SP36 Pro vs Sofirn SK31

Quick take: The Sofirn SP36 Pro costs $3.990000000000002 less; the Sofirn SP36 Pro is brighter (8,000 vs 6,800 lm); the Sofirn SP36 Pro throws farther (423m vs 395m).

SpecSofirn SP36 ProSofirn SK31
Price$49$52.99
Rating——
TypeFlooderTactical
Lumens8,000 lm6,800 lm
Candela44,700 cd39,006 cd
Beam distance423m395m
Runtime2 hrs (high)
Battery1865021700
LED4x Luminus SST40Not named by the maker
Beam typeFloodBalanced
ModesRamping + Stepped6 Stepped + Strobe (2 groups)
UIAnduril 2Two-stage Tail Switch
IP ratingIPX8IPX8
CRI70
Weight10.0 oz7.7 oz (with battery)
Dimensions4.9 x 1.9 in5.9 x 1.4 in
Warranty1 YearNot stated

What owners report

Sofirn SP36 Pro

  • ✓8,000 lumens with three 18650 cells included, for around $50
  • ✓Anduril 2 with all the configurability that brings
  • ✓Balanced beam profile rather than pure flood
  • ✓Good size and weight for the output rating
  • ✓Build quality reviewers call perfectly acceptable, and better than the price suggests
  • ✗No anti-roll flats — it rolls off any sloped surface
  • ✗Cool, greenish SST-40 tint with low CRI
  • ✗Charging three cells takes a long time
  • ✗Cooling fin edges are mildly sharp
  • ✗The thermal sensor can need recalibrating or it steps down early