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.

                                       Princeton Tec Vizz: we measured the maximum beam distance as 58 meters and the ANSI battery run time for the high setting as 3.2 hours.
                                       Black Diamond Spot: we measured the maximum beam distance as 71 meters and the ANSI battery run time for the high setting as 3.7 hours.

Side-by-Side Comparison


Rank #2 #1
Product
Princeton Tec Vizz
Princeton Tec Vizz
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The Black Diamond Spot was updated for 2016 with better optics  53% more lumens (200 vs. 130 before)  and is now waterproof to 1.1 meter. But  we one change we don't like is the new headband strap  which has one buckle facing in (see the right side one above) that we found to be less comfortable than the old strap.
Black Diamond Spot
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Awards     
Price $37.46 at CampSaver
Compare at 4 sellers
$24.99 at MooseJaw
Compare at 5 sellers
Overall Score 
100
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53
100
0
67
Star Rating
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Pros Compact and reliableGood spot light capability, above average in almost every category
Cons More expensive than higher-performing competitionLess battery life than competitors
Weighted Metrics Princeton Tec Vizz Black Diamond Spot
Trail Finding - 20%
10
0
6
10
0
8
Close Proximity - 15%
10
0
6
10
0
7
Battery Life - 15%
10
0
3
10
0
4
Brightness - 25%
10
0
5
10
0
7
Weight - 15%
10
0
6
10
0
6
Ease Of Use - 10%
10
0
6
10
0
8
Product Specs Princeton Tec Vizz Black Diamond Spot
Measured Max Beam Distance 58 m 71 m
Claimed Distance 90 m 75 m
Measured High Mode Run-time (ANSI) 3.2 hrs 3.7 hrs
Claimed High Mode Run-time 3 hrs 50 hrs
Claimed Low Mode Run-time 120 hrs 200 hrs
Weight 98 g, 3.5 oz 96 g, 3.4 oz
Battery Type 3 AAA 3 AAA
Water Resistance IPX 7 (waterproof to 1m) IPX 4 (splash proof)
Manuf Claimed Lumens 165 lumens 130 lumens
Beam Type Flood/Spot Flood/Spot
Red Light Yes Yes
On/Off Switch Lock No Yes