StefanFS
Flashlight Enthusiast
I took some of my led flashlights out in the woods to see what they are made of. The D-Mini, EYJ U2 from DealExtreme and the Ultrafire C2 seem to be reasonably popular. The Liteflux is not so well known, but it's a personal favourite of mine. Pictures appear in that order D-Mini, EYJ U2, Ultrafire C2 and Liteflux LF1.
First set is at 15 meters at about shoulder height, like when you stretch out the arm. Second set is at 50 meters slightly above waist height. Exposure time is 8 seconds. The surroundings are very dark, total abscence of artificial light for miles. All lights are stock except the Liteflux which is modded with an SSC P4 U-bin. (The Ultrafire C2 had a defective led so I changed that to a new Cree P4, it does correspond to Lux figures that others have reported so it could be regarded as stock, I think). All flashlights use fresh LiIon 3.7 Volt cells. 18650 for EYJ U2 and C2, 14500 for the Liteflux and RCR123 in the D-Mini.
Set #1. 15 meters. The first are for side by side comparison. After comes the individual pictures.
Set #2. 50 meters. The first are for side by side comparison. After comes the individual pictures.
As usual nothing comes near the D-Mini in throw. But the EYJ U2 has awe inspiring amounts of output, it also throws better than the C2. The Liteflux has lots of output, but it doesn't throw very far compared with the bigger lights.
Tint on the D-Mini and Liteflux are superior for visibility with vegetation around. It also shows in the beamshots.
Lumens come from lightbox Lux readings, which obviously are out the lens. A big question mark on total output with the D-Mini, sice it's almost all throw it's difficult to get correct readings in a lightbox. My Ultrafire C2 have roughly the same output on 18650, RCR123 and Cr123 primary. Slightly more total output and throw on two RCR123, but I have a hard time seeing any difference without my instruments.
Stefan
First set is at 15 meters at about shoulder height, like when you stretch out the arm. Second set is at 50 meters slightly above waist height. Exposure time is 8 seconds. The surroundings are very dark, total abscence of artificial light for miles. All lights are stock except the Liteflux which is modded with an SSC P4 U-bin. (The Ultrafire C2 had a defective led so I changed that to a new Cree P4, it does correspond to Lux figures that others have reported so it could be regarded as stock, I think). All flashlights use fresh LiIon 3.7 Volt cells. 18650 for EYJ U2 and C2, 14500 for the Liteflux and RCR123 in the D-Mini.
Set #1. 15 meters. The first are for side by side comparison. After comes the individual pictures.
Set #2. 50 meters. The first are for side by side comparison. After comes the individual pictures.
As usual nothing comes near the D-Mini in throw. But the EYJ U2 has awe inspiring amounts of output, it also throws better than the C2. The Liteflux has lots of output, but it doesn't throw very far compared with the bigger lights.
Tint on the D-Mini and Liteflux are superior for visibility with vegetation around. It also shows in the beamshots.
Lumens come from lightbox Lux readings, which obviously are out the lens. A big question mark on total output with the D-Mini, sice it's almost all throw it's difficult to get correct readings in a lightbox. My Ultrafire C2 have roughly the same output on 18650, RCR123 and Cr123 primary. Slightly more total output and throw on two RCR123, but I have a hard time seeing any difference without my instruments.
Stefan
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