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NIGHTWALKER FLASHLIGHT
(ULTRA OVAL)
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Nightwalker Flashlight (Ultra Oval), retail $29.95 (www.herringtoncatalog.com...)
Manufactured by Gelb Design, FLLC. (www.ovallight.com)
Last updated 08-03-13

The Oval Nightwalker Flashlight (advertised as the "Ultra Oval" on the packaging materials and hereinafter, just called the Oval) is a new flashlight made by Gelb Design. The Oval features a bright white Luxeon LED that faces forward like you might expect, and two wide-angle bright white LEDs that face downward where you would not expect, so it lights the ground right at your feet and shines forward at the same time. You can select just the front lamp, just the downward-firing lamp. or both lamps at the same time.

It comes in a high-impact polymer body, and is available with body colors of slightly greenish-yellow or black.

I keep saying "Oval Nightstalker" but it's the Oval NightWALKER.

The Oval was specifically designed to be used while walking or running at night, puttering around the house after dark, walking the dog after sunset, and other tasks where it is beneficial to have the area around your tootsies illuminated as well as the area in front of you.

SIZE

To use the Oval, install the three included AA cells (see directly below), and THEN you can go walk the dog.

Press & release the circular blue button on the front of the Oval's handle to turn the main LED (the front one) on.

Press & release it again to add the two wide-angle 5mm bottom-firing LEDs on (in addition to the front lamp).

Press & release it again to turn the front lamp off but leave the two wide-angle LEDs on.

Finally, press & release it again to completely neutralise it (turn the light completely off).

Just like it reads on the back of many shampoo (or "shampotty") bottles, "lather, rinse, repeat".
In other words, the next time you press the button, the cycle starts again with the main LED being activated.

To change the batteries in your Oval, lay it down on its right side.

Now visible, you should see a battery door with a large clip on one side. Press inward on this clip with your finger or a dull instrument like a screwdriver, swing the door up, remove it, and set it aside.

Remove the three used AA cells from the battery compartment, and dispose of or recycle them as you see fit.

Insert three new AA cells into the battery compartment, orienting them so their flat-ends (-) (negatives) face the springs for them in each chamber.

Place the battery door back on, and press the door down on its clip end until it snaps into place.

Unable to measure current consumption due to how the Oval was constructed.

Photograph of the LEDs in the Oval.

Because the Oval is primarily made of plastic, "The Smack Test" really isn't that appropriate here. It does have a lifetime warranty however, and I must presume that it will get dropped at least several times. So after my sister gets up later this morning, I'll perform "The Smack Test" on it anyway even though it is in an all-plastic case.

Ok, I forgot to do The Smack Test on 01-17-08, so I did it today (01-18-08) instead.
After smacking it 14 times on a concrete sidewalk (10 times each on its left & right sides, 2 against the bottom, and 2 against the handle), only the expected damage was found - there is some minor scuffing & gouging on its left & right sides. No optical or electrical damage was detected.

"The Toilet Test" is also inappropriate. There are no O-rings or other environmental barriers visible in the Oval, so I would not have performed "The Toilet Test" anyway. So water, milk, diet vanilla Pepsi, cold (or hot) coffee, dog urine, ice cold fizzy root beer, disposable douches, disposable enemas, tranny fluid, gasoline, diesel, jet fuel, brake fluid, motor oil, or other liquids could get inside. So please try not to drop it in creeks, rivers, ponds, lakes, oceansides, docksides, snowbanks, puddles of Kodiak bear pee, tall cold glasses (or short lukewarm glasses) of milk, slush piles, mud puddles, tubs, root beer floats, toilet bowls, cisterns, sinks, cups of coffee (hot *OR* cold), fishtanks, dog water dishes, old yucky wet mops, wall-mounted porcelain uranators, puddles from leaky water heaters, near busted garden hoses, or other places where water or water-like liquids might be found.

A little rain or snow probably wouldn't hurt it though, so you need not be too concerned about using it in moderately bad weather.

If it fell in water and you suspect it got flooded, disassemble it as you would for a battery change, dump out the water if necessary, and set the parts in a warm dry place for a day or so just to be sure it's completely dry inside before you reassemble and use it again.

If it fell into seawater, got thrown into a glass of milk, if it fell in a root beer float, if somebody squirted a Massengill brand post-menstrual disposable douche or a Fleet brand disposable enema at it (and hit it with the douche or the enema), or if somebody or something peed on it, douche all the parts off with fresh water before setting them out to dry. You don't want your light to smell like seaweed, sour milk, flowers, fresh butts, or rotten piss when you go to use it next. Besides, salt (from seawater, disposable douches, disposable enemas, or uranation), lactic acid (from moo juice), glycerol (from antifreeze), or sugar (from root beer & ice cream) can't be very good for the insides.

Speaking of having my mind on regulators, I believe there is there is a regulator in the Oval, so it won't just dim steadily as the batteries become used up, but maintain near-maximum intensity for much of the life of the batteries.

The Oval is comfortable to hold, and your thumb naturally falls right over the switch, so it is very easy and natural feeling to turn the Oval on and off; plus it aims forward and (assuming the lower LEDs are also used) down with no unnatural twisting or other contortions of your hand or arm.

What I like about the Oval is that it directs a broad flood of light at your feet AT THE SAME TIME as it directs a narrow flood of light ahead of you!!!

This is the only brand of flashlight - that I know of anyway - that has this feature!!!

If you're reasonably careful, the Oval can be stood upright on the two plastic feet on its underside. The Oval isn't 100% stable in this configuration, but it *can* be stood upright if need be.

Beam photograph (main beam) on the target at ~12".
Measures 225,000mcd.

Beam photograph (wide-angle beam) on the target at ~12".
Measures 40,500mcd.
Remember, wider viewing angles always, always, ALWAYS equal lower mcd values.

Both measurements were taken on a Meterman LM631 light meter.

Beam photograph (main beam) on a wall at ~10 feet.

Those rectangular graphic things in the upper left quadrant of this photograph are marquees from:

Atari ''Tempest''
Nintendo ''R-Type''
Super Tiger...er...uh...Konami ''Super Cobra''

Midway ''Omega Race''
Sega ''Star Trek''
Williams ''Joust''
Venture Line ''Looping''
Universal ''Mr. Do!'s Castle''
Jaleco ''Exerion''
Gremlin/Sega ''Astro Blaster''
Gottlieb ''Q*bert''

upright coin-op arcade video games from the 1980s.

That graphic toward the right is a "BIG SCARY LASER" poster sent by www.megagreen.co.uk, and that clock to the right of the "Big Scary Laser" poster is an Infinity Optics Clock..

Spectrographic analysis of the Luxeon LED in this flashlight.

Spectrographic analysis of the Luxeon LED in this flashlight; newer spectrometer software & settings used.

Spectrographic analysis of the Luxeon LED in this flashlight; spectrometer's response narrowed to a band between 430nm and 480nm to pinpoint native emission, which is 459.066nm.

Spectrographic analysis of the 5mm LEDs in this flashlight.

Spectrographic analysis of the 5mm LEDs in this flashlight; newer spectrometer software & settings used.

Spectrographic analysis of the 5mm LEDs in this flashlight; spectrometer's response narrowed to a band between 430nm and 480nm to pinpoint native emission, which is 454.221nm.

Spectrographic analysis of the Luxeon LED in this flashlight.

Spectrographic analysis of the Luxeon LED in this flashlight; spectrometer's response narrowed to a band between 452nm and 462nm to pinpoint native emission peak wavelength, which is 457.170nm.

The raw spectrometer data (comma-delimited that can be loaded into Excel) is at http://ledmuseum.candlepower.us/42/gelbf.txt

Spectrographic analysis of the 5mm LEDs in this flashlight.

Spectrographic analysis of the 5mm LEDs in this flashlight; spectrometer's response narrowed to a band between 450nm and 460nm to pinpoint native emission peak wavelength, which is 452.590nm.

The raw spectrometer data (comma-delimited that can be loaded into Excel) is at http://ledmuseum.candlepower.us/42/gelbd.txt

USB2000 Spectrometer graciously donated by P.L.

ProMetric analysis

Beam cross-sectional analysis of the Luxeon (main LED).

ProMetric analysis

Beam cross-sectional analysis of the 5mm wide-angle (bottom) LEDs.
Image made using the ProMetric System by Radiant Imaging.

TEST NOTES:
Test unit was purchased on the Herrington catalogue website on 01-06-08, and was received on 01-17-08.

UPDATE: 00-00-00

PROS:
Decent brightness from the forward-firing LED
Has two wide-angle lamps aiming toward the bottom
Regulated, so brightness will not drop off as soon as you turn it on
Ergonomically designed to fit your hand
Equally comfortable for right-handed or left-handed people to use
Uses batteries that are relatively inexpensive and readily available

CONS:
Not waterproof or even all that water-resistant

Gelb Design, FLLC.

Handheld flashlight for walking at night

White Luxeon I LED, 5mm wide-angle white LED

3 (1 Luxeon at front and 2 5mm aimed downward)

(Main) Wide spot with soft perimeter, (Downward) Medium flood

Pushbutton on/mode change/off on top of handle

Plastic

(Main) Plastic; LED & optic recessed. (Bottom) Plastic; LEDs inset into hosels for them

3xAA cells

Unknown/unable to measure

Splash-resistant at best

NO WAY HOZAY!!!

Batteries

141.10g (4.970 oz.)

China

Lifetime

Nightwalker Flashlight (Ultra Oval) * www.herringtoncatalog.com...

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