UTL-4BK Quasar Tail Light

Serfas

Bike
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Claimed Specs

Beam

Flood

Lumens

25 High
Med
10 Low

Run Time (mins)

150 High
Med
300 Low

Charge Time

4 hours

Weight

46 grams

Claimed vs Actual Results
Lumens Beam Angle Runtime
Claimed 25 150 mins
Actual 13 167 mins
Difference

Tested on 'High' Solid Mode

Lumen Test


Taillight Beam

Sidelight Beam