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Thunderbolt USL-6

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Serfas

Bike
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Claimed Specs

Beam

Flood

Lumens

90 High
Med
Low

Run Time (mins)

85 High
Med
Low

Charge Time
Weight

53 grams

Claimed vs Actual Results
Lumens Beam Angle Runtime
Claimed 90 85 mins
Actual 87 107° 73 mins
Difference -3 -12 mins

Lumen Test

Beam Test

Headlight Beam

Sidelight Beam