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SigmaPowerLED Pro Black Edition Li-Ion
4.0
We're sorry, this product has been discontinued.
Show Products From Sigma
PowerLED Pro
- High power LED produces up to 300 lm
- Li-Ion battery with battery status indicator and 2.5 hr recharge time
- 3 modes: economy (11 hours), standard (5.5 hours) and power (3.5 hours)
- Includes handlebar and helmet mount
Specifications
Battery
Lithium Ion
Bulb Type
LED
Tree Fort ID:
333222343401
Review Summary
LIKES
Construction (1),
Charge/Run Time (1),
Beam Pattern (1),
Helmet Mount (1)
WORKS FOR
Commuting (1),
Road Riding (1),
Night Bike Rides (1)
DISLIKES
none
4.0 GEARS
1 review
1 review
Customer Questions
Q.
asked by: Sacjtom
How do you measure the lummen? At what distance from the light? (a foot, a yard?)
How do you measure the lummen? At what distance from the light? (a foot, a yard?)
A.
anwered by: smulder
Lumens are a measurement of light and is equal to one foot-candle falling on one square foot of area from one foot away. The best way to think about it is that a lumen is a measurement of how much light falls on an object one foot away if that object is one foot by one foot in size. The more lumens the more light hits the object.
Lumens are a measurement of light and is equal to one foot-candle falling on one square foot of area from one foot away. The best way to think about it is that a lumen is a measurement of how much light falls on an object one foot away if that object is one foot by one foot in size. The more lumens the more light hits the object.
Customer Reviews
4
March 31, 2011
reviewed by: A Guest
Great light. Battery pack easily slips into jersey pocket. Very happy with purchase
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