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Pros: High Speed
Cons: NoneREAD FULL REVIEW
This review is from: 5000 Lumens 2x CREE XM-L U2 LED Cycling Bike Bicycle Light Headlamp Headlight
Pros: Great light quality and pattern
Cons: Not so great battery life, in spite of proper battery procedures.
The 5,000 lumen claim is just that, claim. Light is still bright, however..
Other Thoughts: Mounting method is comical at best, but does suffice.
Charger outputs 8.4 Volt to battery pack, consisting of twin cells..
Pros: Good beam that's adjustable with bonus of being able to use on one's bicycle.
Cons: Uses 3 AAA batteries, supposed to also use 18650 (3.7v) but doesn't work the modes quite right.
Other Thoughts: Standard 1.5v AAA starts @ 1.65v 3 x 1.65v = 4.95v
Lithium AAA starts @ 1.8v 3 x 1.8v = 5.4v
18650 3.7v battery starts @ 4.3v
See how the numbers fall?