Dorcy 2 AA 4 LED

Provided for review
by the kind folks at:

 
 
3 Stars
Good
         

Light Type: 5mm LED
Light Class: General Use

Short Description:


Available from BrightGuy.com.

The Dorcy 2 AA 4 LED light is a small pocket light which uses a two AA batteries for power and a voltage step-up circuit do drive four white, practically indestructible, 5mm LEDs.

The body of the light is made from aluminum and is anodized in a variety of available colors. Around the head and center of the body are black rubber grip rings. The head is not designed to be removable and the light is not focusable. Instead it provides a fairly bright broad beam with a high color temperature as is typical of 5mm LED lights. The LEDs are recessed in the reflector and are protected behind a plastic lens. O-rings seal the body against the entry of water.

Switching is accomplished by tightening the tailcap for constant on or by pressing in on the tailcap button for momentary illumination. Removing the tailcap allows the user to change the batteries. A hang ring is attached to the tailcap. This particular unit came bulk packaged without batteries.

Size vs. common aluminum 2-AA light (top)
Bezel picture
Beam Profile

Detailed Information:

Dorcy was one of the more mainstream flashlight manufacturers to invest early in the "new" technology of LED lights for consumers and they now have a line of LED lights - some with voltage boost circuits, some without - which include AAA, AA, and C cell powered 5mm LED lights. All of them are of rather good quality and quite affordable, bringing LED lighting to the masses. They are now showing up in mainstream stores as well as online retailers. The prices are much lower than most LED lights available out there, and the quality actually isn't bad at all.

The body of the Dorcy 2 AA is made of aluminum with silver Type II anodize. They are available in body colors of gold, silver, red, and blue. This anodize is relatively durable but will mar fairly easily if kept in contact with hard objects. Around the center of the body is a diamond-pattern rubber grip and a thin ring of the same material surrounds the head. The diamond pattern is new as previous versions had a ribbed pattern. The head can be removed, but it serves no real purpose to do so. The head is slightly larger in diameter than the rest of the body, making it a little awkward to keep in a pants pocket.

The bezel consists of four 5mm white LED recessed in a silvered plastic reflector. Having the LEDs recessed in small cylindrical silvered compartments increases the throw of the LEDs slightly, giving them a more directional nature. The head is sealed with a plastic lens to protect the LEDs and reflector. Behind the LEDs is a tiny step-up circuit that allows the LEDs to run on 2 AA batteries which would otherwise not provide enough voltage to drive the LEDs. Not having inexpensive, small driver circuits was one of the roadblocks to the use of LEDs in consumer flashlights and Dorcy was one of the early adopters of a simple and inexpensive circuit to make LED lights run on any number of cells. Usually you would find that inexpensive LED lights take 3 cells, which is an unusual number and makes the body of the light rather long, or 4 cells and the energy of one of the cells is all but completely wasted by a resistor.

Output is in the form of a broad spot with some slight artifacts from the LEDs. The beam is a high color temperature and appears bluish in tint.

The switch is built into the tailcap and you can either twist the tailcap for constant-on use or you can press the button on the end of the tailcap for momentary (blink on-off) use. A hang ring is attached to the momentary pushbutton and it helps prevent the switch from coming apart when you remove the tailcap for battery changes. The switch also has a "lockout" capability. Simply unscrew the switch 1½ turns from the point where it turns off and the push button switch cannot activate accidentally.

The light is sealed with an O-ring in the tailcap and on the pushbutton to prevent the entry of water, but I don't know how far I would push it. If you drop it in a puddle, shake it off and keep going, but I would later open it up just to be sure water did not get in. If it is moist inside, open it up and let it dry out before using further.

Ergonomics: Comfortable in the hand, easy to operate one handed by holding in the palm and twisting the tailcap with the thumb and forefinger. About the same size as a common 2-AA aluminum light and fits in the same sheath.

Two AA batteries drive the light. Runtimes are not given, but based upon similar lights produced by Dorcy, I'd expect at least 5 hours, if not 10, of good light out of a set of batteries. Brightness will diminish in intensity throughout the effective life of the batteries. To change the batteries, simply remove the tailcap and drop out the old batteries. Drop in new batteries positive-first and close it back up again.

What I Liked: Water resistant, No bulb to blow, Step-up circuit and anticipated long battery life, Relatively Bright, Easy battery change, Lightweight

What I Didn't Like: Slightly cheesy construction, but not too bad overall.

Other Things I Noticed: Twisting the switch back too far will cause the built-in "lock out" feature to engage. This happens rather quickly on the light I tested. Turning the tailcap 3/4 of a turn backwards may cause it to "lock out" and the button on the end won't operate. Just be aware that if the button doesn't work, give it 1/2 a turn toward "on" and try again.

Conclusions: A fantastic little pocket flashlight for the money. Great for finding things dropped in the dark or serving as a general use pocket light. Bright enough to use in any application where you would use another small LED flashlight, they're convenient, small, and fairly durable. In many cases it can easily replace the "typical" 2-AA aluminum flashlight that most people carry.


Quick Facts Table:

Review Date ............................. July 2004
Case Material ........................... Type II anodized aluminum, rubbery plastic
Case Features .......................... Lanyard loop, textured grips
Case Access Type .................... Unscrew tailcap
Switch Type ............................. "Tactical type tailcap" - Tighten/loosen for on/off, press for momentary
Reflector Type ......................... Silvered plastic
Lens Type ................................

Clear plastic

Bulb Type ................................. 4 x 5mm white LEDs
Beam Type ............................... Wide spot
Beam Characteristics ............... Slightly blotchy, bluish tint
Throw (Lux) at 1m (click for description) ~ 62 at beam center. (7.86 Comparison Chart equivalent)
Overall Output (click for description) ~ 500 (5.00 Comparison Chart equivalent)
Battery / Power Type................ 2 x AA
Battery Life (advertised) ........... Unknown
Environmental Protection ......... O-ring seals
Weight (oz.) with batteries ....... 3.7
Special Items of Note ............... Tailcap has "lock out" capability for transporting light
Warranty .................................. Unknown
Retail Cost ................................ 14.25 US$ at time of review from BrightGuy.com.
 

 

 
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