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html›body›main#compare1,338 models · updated Nov 10, 2026
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  3. Intensity 370 vs Seek 420

Lifesystems Intensity 370 vs Silva Seek 420

What Intensity 370 does better (0) and where Seek 420 wins (1) — every spec side by side.

Lifesystems Intensity 370
Lifesystems · 2026Intensity 370
4.3Score
0 advantages≈ $25
vs
Silva Seek 420
Silva · 2025Seek 420
8.1Score
1 advantage≈ $25
Higher score
3.1Brightness & throw5.5
5.9Features5.9

Why is Intensity 370 better than Seek 420?

Intensity 370 has no measurable advantages in this pair.

Why is Seek 420 better than Intensity 370?

  1. Maximum output230 lm vs 420 lm+83%
Specifications

Side by side

Silva Seek 420Silva Seek 420≈ $258.1
Light output
Maximum output230 lm420 lm
Light sourceLEDLED
LED & beam
Number of LEDs—3
Battery & charging
Battery—AAA
Maximum runtime110 h110 h
Rechargeable—Yes
Build & durability
Water protection (IPx)—IPx8
Submersible to—2 m
Body material—Plastic / polymer
Size & weight
Weight—92 g
Modes & features
SOS / beaconYes—
Red light—Yes
ColoursBlackBlue
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