Length:: 0:46 Mins
This is from a review I did on this exact flashlight from a different section of amazon. Not all info may apply to this specific offer on amazon. I have also added 3 pictures showing the High/Med/Low. Please note in the pictures that the bat is the 4200mAH Ultrafire 18650 at approximately 75%~85% charge level.
***bat and lux test***
Decided to get some raw data for the flashlight.
Some info will be repeated further in the review
*2.2~2.3 amp draw
*Initial lux 4800~4900
*Run time @ 35%> light output 25~35 minutes
*180~210 mA draw
*Initial lux 2600~2750
*Run time @ 35%> light output 55~60 minutes
*18~22 mA draw
*initial lux 680~720
*Run time @ 35%> light output 3hr+
***Lux meter measurements @ approximately 1 foot with focus at max spread "X2000". Which produces a lit area of about 1.5 feet dia. 4200mA UltraFire batteries where fresh out of the supplied charger and light was in 73 degree F room with still air.
***Strobe and S.O.S. not tested
***Output is not regulated, the light levels do slowly fall in accordance with the bat drain.
***AAA Alkaline, Ni-Cad, Ni-MH and Li-Ion negligible performance/too expensive compared to 18650 Li-Ion bat (best use AAA if you just plan to use it intermittently).
modes: High/Med/Low/Strobe/S.O.S Button can be pressed half way to cycle the modes. Just like for a digi cam when auto-focusing.
The construction and performance of it seems to be on par with any other light out there for it's given features and attributes (but way less expensive). The "zoom" is awesome. It's like having a noticeably brighter Mag light that fits in the palm of your hand.
The quality however is lacking in certain areas. For one the rather soft plastic lens. While very clear, would scratch and gouge easily. The circuitry is basic and allows what seems to be unregulated flow of current to the emitter on high. The amp hour rating of the bats are totally off as well. I should have been able to get a solid 2.5~3 hours of effective run-time on med out of a 200 mA draw from a 4200mAH bat. The bats are more realistically around 1800~2000mAH.
This is a nice little light (for the price). In the video you see me shine the light at a house across the street (about 150 feet away). This is on the high setting. Even on the low setting when focused out to a point I could still clearly make out the features of the house. On the high setting I can clearly make out objects out to approximately 400~500 feet. The light looks dim as the video quality has been reduced and my phone does not record low light levels with realistic contrast and brightness.
I would Highly recommend ***NOT*** using the high setting unless you really need it. Not that the light gets excessively hot but the amp draw is a little over half the rated amp hour of the 4.2AH 3.7V Li-ion bats you get with it. Not sure if that's good for the emitter long term ether. More immediately, is not good for bat life. The med setting seems to draw around 150mA and was still plenty bright enough for general use. The other settings would not realistically effect bat life. The're likely not going to be used often or they don't draw enough current to be worried about it (low only drew about 15mA).
The 3 AAA provides the appropriate voltage but take note that the bats are in series to get that. This reduces the nominal max available current draw to the weakest battery of the 3 (and no more than 700mA in my case as you're about to read). I even used my 700mAH rechargeable energizes but it didn't seem to want to let it run above low for any real length of time. Plus the AAA just don't produce that pure power output that separates this from the $3 single LED ones you get at the hardware store.
The charger you get with it seems to be the appropriate constant voltage type. With a dead bat/s in the charger and plugged in, the light will be a reddish-orange and will slowly fade to all green as it charges. It's not the most sophisticated charger but it works likes it's supposed to. One dead Ultrafire 4.2AH bat took about 4~5 hours or so to charge with the supplied charger (assume 10 or more hours for two bats).
All the tech stuff aside, I will certainly be telling people about this little light and encouraging them to check it out before deciding what to buy in regards to expensive lights.