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Sofirn SP40A vs Sofirn ST1

Quick take: The Sofirn ST1 costs $0.010000000000001563 less; the Sofirn ST1 is brighter (1,500 vs 1,200 lm); the Sofirn ST1 throws farther (226m vs 136m).

SpecSofirn SP40ASofirn ST1
Price$25$24.99
Rating——
TypeHeadlampEDC
Lumens1,200 lm1,500 lm
Candela4,620 cd0 cd
Beam distance136m226m
Runtime2 hrs (high)
Battery18650Built-in
LEDLH351D 5000KLuminus SFT25R 6000-6500K + 4x CSP1313 5000K
Beam typeFloodBalanced
Modes4 SteppedSpot + Flood
UISimple
IP ratingIPX7IPX7
CRI90
Weight2.2 oz3.5 oz
Dimensions4.25 x 1.0 in4.7 x 1.1 in
Warranty1 YearNot stated

What owners report

Sofirn SP40A

  • ✓Magnetic base turns it into a stick-anywhere work light off the headband
  • ✓Aircraft-grade aluminium with machining quality well beyond the price
  • ✓Four genuinely useful brightness levels, with a very bright 1,200 lumen turbo
  • ✓Headband comfort improved over earlier Sofirn models
  • ✓Long-standing reputation as the best-value 18650 headlamp with onboard charging
  • ✗Micro-USB charging rather than USB-C — the clearest sign of its age
  • ✗Output is unregulated and tracks the cell voltage down
  • ✗No strobe or SOS mode at all
  • ✗The head strap is thinner than premium brands'
  • ✗Superseded by newer Sofirn headlamps with USB-C and better emitters