6-LED/LASER POINTER FLASHLIGHT

6-LED/Laser Pointer Flashlight, retail $29.95 (www.x-tremegeek.com...)
Manufactured by (Unknown)
Last updated 02-09-12




It's a laser pointer...o wait, it's a flashlight...actually, it's both!

This is a 6-white LED flashlight and a red laser pointer in one handy-dandy package. It comes in an aluminum body. The LEDs and laser diode feed from four AA cells, held in a carriage that's part of the flashlight itself. The head and the lower half of the barrel are knurled (texturised) for grip, and it's reportedly waterproof.

There's no indication as to its manufacturer, either on the unit itself or on/in the box it comes in.


SIZE



To use this device, feed it first (see below) and then you'll be ready to go to town.

To use the flashlight portion in continuous mode, press the second button (the one closer to the tailcap) and then release it. This turns the LEDs on. Press and release the button the same way again to turn the LEDs back off.

To use the flashlight in momentary (signalling) mode, press the button more lightly, and hold it that way for as long as you need the light. Release the button to turn the LEDs off.

To use the flashlight in laser pointer mode, press and hold the first button (the one closest to the bezel). Hold it for as long as you need the laser. Release the button to turn the laser off.

Unlike the other flashlight/laser pointer combo I evaluated in late 2003, you can use the laser and LEDs together in this unit if you wish.

The flashlight/laser combo comes with a wrist lanyard, already affixed to a nipple on the tailcap of the unit. This lanyard fits all the way around the unit, so you can hang it from a tree branch, small water pipe, or other object with no accessible "end".



To change the batteries in your flashlight/laser combo, unscrew the two halves until they come apart. They come apart near the center. Set the aluminum barrel aside. In the black part of the unit, there is a battery carriage. Remove the four used AA cells from this carriage, and dispose of or recycle them as you see fit.

Install four new AA cells in the battery carriage, putting each cell in its chamber by either following the polarity markings embossed in the bottom of each chamber, or by orienting each cell so the flat end (-) negative faces a spring in the chamber for it.

Once all four cells are in, screw the aluminum barrel back on. If the flashlight emits a squeaking or grating sound and offers significant physical resistance, lubricate the threads and O-ring with a silicone lubricant, like Nyogel 759G, and then screw the barrel back on.




Photograph of the business-end, showing the 6 LEDs and in the center, the laser aperture.

The unit itself appears to be at least reasonably sturdy, but the table hosting the steel rod I use for smack tests is hosting a running test, and smacking this unit against the rod now would queer the test that's running now, so this aspect of my testing will have to wait.

(Edit 05-26-04:)
I did the smack test today, and other than putting some scuff marks on the barrel near the tail end and significantly lighter scuff marks on the bezel, the unit was not damaged in any manner, and continues to function correctly.

The unit has knurling (texturising) on the barrel and on the bezel; this knurling helps you "keep a grip on things" when your hands are cold, oily, or wet. This knurling is fairly aggressive (sharp), but not overly so. The texture is rough enough to aid in retention, but I don't believe it would cut up clothes if carried in a pocket or similar location.

There are O-rings sealing both the barrel and the bezel (head), however I believe this unit will leak around the two switches. I removed the ring around the bezel, and performed the dreaded suction test, and air was able to enter through I believe the switch openings.
So, weather-resistant maybe, splash-resistant probably, but waterproof and submersible no.

The LED beam appears to be in a narrow flood configuration; generating a central hotspot with a very soft fall-off toward the edges.

The laser appears to emit at between 645 and 650nm in the red portion of the spectrum, and probably has a power output of 2-3mW. Both of these parameters are well within the labelling on the unit itself and on the outside of its box. According to the label, it's a CDRH Class IIIA laser device, emitting <5mW of laser radiation at 630-660nm.

The laser and the LEDs can be used together, if you wish...o wait, I said that already...o well.
If you wish to do this, press the second button (the one closest to the tailcap) and release it. This turns the LEDs on. Now, press and hold in the first button (the one closest to the bezel). The red laser will then come on and stay on for as long as the button is held down. On new batteries, there's no discernable brightness difference in either the laser or the LEDs when the unit is used in this manner.



Beam photo (of LEDs) at ~12".
Measures 43,000mcd on a Meterman LM631 light meter.
While this is not a super high value, it isn't disappointingly low either. I won't complain.



Beam photo (of laser beam) at ~12".
Power output measures 2.459mW. Spot is not as large or white as it appears in this photograph.


Laser power analysis
Measures 9mW on a LaserBee 2.5W USB Laser Power Meter w/Thermopile.



Photo of the laser beam on a ceiling at about 5'
Spot is not white as it appears in this photograph.


Spectrographic analysis
Spectrographic analysis of the LEDs in this product.


Spectrographic analysis
Spectrographic analysis of the LEDs in this product; newer spectrometer software & settings used.


Spectrographic analysis
Spectrographic analysis of the LEDs in this product; spectrometer's response narrowed to a band between 430nm and 480nm to pinpoint peak native emission wavelength, which is 456.477nm.


Spectrographic analysis
Spectrographic analysis of the laser in this product.


Spectrographic analysis
Spectrographic analysis of the laser in this product; newer spectrometer software & settings used.


Spectrographic analysis
Spectrographic analysis of the laser in this product; spectrometer's response narrowed to a band between 655nm and 660nm to pinpoint peak wavelength, which is 657.431nm.

USB2000 Spectrometer graciously donated by P.L.



ProMetric analysis
Beam cross-sectional analysis (White LEDs).


ProMetric analysis
Beam cross-sectional analysis (Laser, X-axis).


ProMetric analysis
Beam cross-sectional analysis (Laser, Y-axis).

Images made using the ProMetric System by Radiant Imaging.





TEST NOTES:
Unit was bought from X-Treme Geek, and was received on 05-21-04.


UPDATE: 00-00-00



PROS:
Appears to be of reasonably durable construction
Unit has proper laser warning label
LEDs and laser can be used simultaneously


CONS:
Large for what it is


    MANUFACTURER: Unknown
    PRODUCT TYPE: Handheld flashlight/laser pointer combination
    LAMP TYPE: 5mm white LED/red diode laser
    No. OF LAMPS: 6 LEDs, 1 diode laser
    BEAM TYPE: Narrow flood with dimmer corona
    SWITCH TYPE: On/off/momentary pushbutton for LEDs, momentary pushbutton for laser
    BEZEL: Metal; LEDs and laser protected by plastic window
    BATTERY: 4x AA cells
    CURRENT CONSUMPTION: Unknown/unable to measure
    WATER- AND PEE-RESISTANT: Yes, splash- and weather-resistant only
    SUBMERSIBLE: NO WAY HOZAY!!!
    ACCESSORIES: Wrist lanyard, set of batteries
    WARRANTY: Unknown/not stated

    PRODUCT RATING:

    Star Rating





6-LED/Laser Pointer Flashlight * www.x-tremegeek.com...






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