AdvancedMart 41 LED (4xAAA)

Light Type: 5mm LED
Light Class: General Use

This 41 Security Quality LED light is like many new Security Quality LED lights coming out recently. By using a number of 5mm LEDs for producing light, these Security Quality LED lights are now competing well with traditional incandescent flashlights in terms of output. Some of these lights use boost circuits or resistors depending on the power source.

The body of the light is made of anodized aluminum. The body has 7 deep grooves machined into the sides for grip and the body has flat plateaus running lengthwise. The tailcap has a checkered ring around its circumference, and there is a rubberized ring with ridges in a groove running around the head. The body wall is quite thick – well built. The finish is a flat light gray. At the very front of the light is a polished silver reflector which contains the LEDs, sitting behind a plastic lens. Both the bezel ring and tailcap are removable. The tailcap is flat so that it can stand on end and has a lanyard attachment point in the form of a drilled, recessed post. The rubber covered push button click switch for operating the light is on the body just below the head. Two modes of operation are available: 21 LEDs on, or 41 LEDs on.

At the front of the light you will see the polished silver reflector where the LEDs reside, sitting behind a clear plastic lens. The bezel ring can be removed which reveals that the reflector/LED unit is attached to the switching mechanism by three thin wires. There appears to be no O-ring between the lens and the bezel ring which results in no water resistance and the lens/LED assembly rattles in the head. I suspect that there was supposed to be an O-ring in there, but it was missed during assembly.

Output is in the form of a substantially bluish tinted white spot of light. The spot is fairly wide and tapers off a little around the edges. A nice soft spillbeam surrounds the main spot followed by a distinct ring on the very periphery of the spillbeam. There are two modes of operation: 21 LEDs on (the center LEDs) or 41 LEDs on (the center LEDs plus the outer ring of LEDs). Oddly enough, when switching between the two modes there appears to the eye to be only a slight increase in brightness.


Beam at one meter at target center

Runtime Plot: YIKES! 20 minutes of 50% and a major dropoff in output. 41 LEDs rip right through those four little AAA cells…..


Runtime completed with Duracell batteries.

The switch is on the side of the light, sits in a slight recess, and is covered by a domed rubber cap. This cap protrudes above the surface of the light and so could be subject to accidental activation. The head of the light is larger than the body, so resting the light on its side on a flat surface will not cause the switch to touch anything. The clickie switch is a “reverse clickie”, turning the light on after it clicks and is released.

The light is sealed from the environment by an O-ring at the tailcap, but not at the bezel. I’d give it a splashable at the maximum. If water gets inside just disassemble as much as possible without tools and let it dry before using again.

Ergonomics: A pretty normal sized small light. Not too large, not too small. A too large to be carried comfortably inside the front pants pocket. This is more of a “carry it in your car or dufflebag” light than a “carry it on your person” light.


Size compared to a common 2AA aluminum light

Use 4 AAA cell alkaline batteries for powering this light. Batteries need to be inserted into the special carrier inside the body tube. Simply remove the tailcap, drop out the carrier, put in 4 AAA cells with the negative (flat) side against the springs (2 point up, two point down) and drop the whole carrier in with the contacts forward. Reattach the tailcap and you’re ready to go.

Accessories: None

What I Liked: Generally tough/impact resistant, Very bright output, Fairly easy battery change, Stands up

What I Didn’t Like: Very short battery life, Water resistance questionable, I really don’t like the use of battery carriers – one more thing to lose or break,

Other Things I Noticed:

Conclusions: Fair quality light with very bright output, but only for a very short time. I did have one problem with the light – pressing the switch at an angle multiple times caused the switch to stop functioning. It was easy, however, to take it apart by removing the rubber cover and fix it myself.