Beam Comparison - Headlamp


Battery Life vs. Beam Distance - the above graph shows how beam distance at the brightest setting degrades as battery life runs down. We use the ANSI FL-1 battery run-time spec, which says run-time for the high mode is finished when brightness degrades 90% from its initial value. The ANSI standard is more stringent than what headlamp manufacturers use. They consider high mode run-time still OK so long as there's enough battery to produce light as bright as a candle placed 2 meters away (0.25 lux). We think the manufacturer's approach is deceptive and misleads consumers to believe the high output mode produces a long-distance beam much longer than it actually does.

                                       Black Diamond Icon: we measured the maximum beam distance as 82 meters and the ANSI battery run time for the high setting as 9.4 hours.
                                       Petzl NAO: we measured the maximum beam distance as 113 meters and the ANSI battery run time for the high setting as 2 hours.

Side-by-Side Comparison


Rank #1 #2
Product
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Price $65.01 at Amazon
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$149.89 at REI
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Overall Score Sort Icon
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68
100
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65
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Pros Bright, wide spotlight, clear/smooth optics, long battery life, robust designPerfect 10s for trail finding and close proximity, cool technology, charge off any usb plug
Cons Heavy, bulky, and expensiveAbysmal battery life, reactive lighting can be as annoying as useful
Bottom Line Very bright with a wide beam, this model is bulky and heavy with an even heavier price tag.A high scorer in trail finding and close proximity, this model slips in the battery life department.
Weighted Metrics Black Diamond Icon Petzl NAO
Trail Finding - 20%
10
0
9
10
0
10
Close Proximity - 15%
10
0
6
10
0
5
Battery Life - 15%
10
0
8
10
0
4
Brightness - 25%
10
0
7
10
0
9
Weight - 15%
10
0
2
10
0
3
Ease Of Use - 10%
10
0
8
10
0
4
Product Specs Black Diamond Icon Petzl NAO
Measured Max Beam Distance 82 m 113 m
Claimed Distance 100 m 135 m
Measured High Mode Run-time (ANSI) 9.4 hrs 2 hrs
Claimed High Mode Run-time 75 hrs 8 hrs
Claimed Low Mode Run-time 175 hrs 12.5 hrs
Weight 232 g, 8.2 oz 190 g, 6.7 oz
Battery Type 4 AA Proprietary Rechargeable or 2 AAA
Water Resistance IPX 7 (waterproof to 1m) IPX 4 (splash proof)
Manuf Claimed Lumens 320 lumens 575 lumens
Beam Type Flood/Spot Flood/Spot
Red Light Yes no
On/Off Switch Lock Yes Yes