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Thunderbolt

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Serfas

Bike
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Claimed Specs

Beam

Flood

Lumens

35 High
Med
Low

Run Time (mins)

90 High
Med
Low

Charge Time

4 hours

Weight

50 grams

Claimed vs Actual Results
Lumens Beam Angle Runtime
Claimed 35 90 mins
Actual 32 88° 77 mins
Difference -3 -13 mins

Lumen Test

Beam Test