"LIGHT SWITCH" LED FLOODLIGHT
"Light Switch" LED Floodlight, retail $3.99 (harborfreight.com...)
Manufactured by (Unknown) for Harbor Freight (harborfreight.com)
Last updated 10-16-20
The "Light Switch" LED Floodlight is an interesting little light; it is designed to resemble a household wall light switch.
But when you turn it on, you are blinded by a brilliant cool white light, generated by a pair of LED strips on either side of the switch lever.
It is powered by four AAA cells, and looks like a larger version of a household wall light switch.
It can be hung on a wall with screws (two "keyhole" openings on the back make mounting the light this way a sinch) or magnetically affixed to any flat ferrous (iron, mild steel, cobalt, nickel, gadolinium, etc.) surface via the two magnets on its reverse side.
SIZE
To turn it on, flip the large lever on the front of the unit toward the "shining light bulb" legend; to turn it off, flip the lever toward the "OFF" legend silkscreened on the face of the unit.
To change the batteries in the "light switch" floodlight, turn it over so that the "good" part faces the floor.
Slide the battery doors away, remove them, and set them aside. Do not put them in a vice, use your foot to push them down the stairs, drop them over the side of the Juneau-Douglas bridge so that they go blub blub blub all the way to the bottom of Gastineau Channel with all of the bowling balls that were lobbed over that bridge in the 1950s and 1960s, toss them in the street on garbage day so that a dustcart (garbage struck) runs over and destroys them, etc. -- just set the gosh darn-diddly-arn things aside, ok? 
Relieve the battery chambers of their two dead AAA cells (in each chamber), and dispose of or recycle them as you see fit.
Install new AAA cells, orienting them so that their flat-ends (-) negatives face the springs for them in each compartment.
Slide both battery doors back on, and be done with it.
Done with that, fun yeah! 
Current usage measures an unexpectedly high (for an AAA cell light) 900mA on my DMM's 10A scale.
It is advertised to operate for three (3) hours on a set of batteries.
This light does not belong to me, so the potentially damaging (and even occasionally destructive) tests will not be performed on it. I know that you like to see me try and break things and drown stuff in the loo, but "ain't" "gonna" happen today, folks.
In leiu of The Toliet Test, I administered The Suction Test which is a passive version of a water-resistance test that does not involve the use of any liquids.
When I performed this test, some leakage was noted, but not nearly as much as I thought there would be.
That being said, I did note that the product feels kind of cheap and hollow; but that's true of many products of the Hoo Phlung Pu brand.
Beam terminus photograph on a wall at 12".
Measures 104,100mcd on an Amprobe LM631A light meter.
This is a wide-angle light though, and if I've told you once, I've told you 31,054,500 times: wider viewing angles always, always, ALWAYS equal lower mcd values!!!
Beam terminus photograph on a wall at ~8 feet.
Photograph showing the unit affixed to a refrigerator door via its magnets.
Spectrographic analysis of the LED in this light.
Spectrographic analysis of the LED in this light; spectrometer's response narrowed to a band between 440nm and 460nm to pinpoint native emission peak wavelength, which is 445.170nm.
The raw spectrometer data (tab-delimited that can be loaded into Excel) is at switch.txt
USB2000 Spectrometer graciously donated by P.L.
A beam cross-sectional analysis would normally appear here, but the ProMetric System
that I use for that test was destroyed by lightning in mid-July 2013. 
TEST NOTES:
Test unit was found in the garage of my president residence on 10-15-20; since it doesn't belong to me, the dreadful, "
" icon will be appended to its listings on this website at once.
UPDATE: 00-00-00
PROS:
Brighter than H-E-Double-Bendy-Straws
The price is most definitely right considering the high intensity
Uses batteries that are common and relatively inexpen$ive
NEUTRAL:
CONS:
Unexpectly high current usage could mean very short battery life (this alone is what nocked the most stars off its rating!)
Not very water-resistant at all
Has a bit of a cheap or "chintzy" feel to it
MANUFACTURER: Unknown for harborfreight.com
PRODUCT TYPE: High-power novelty "light switch" light
LAMP TYPE: Linear phosphor white LED arrays (10 dice each)
No. OF LAMPS: 2
BEAM TYPE: Wide flood
REFLECTOR TYPE: N/A
SWITCH TYPE: "Flip"-style on/off on upper surface of product
CASE MATERIAL: Plastic
BEZEL: Plastic; LED array behind a stippled plastic window
BATTERY: 4x AAA cells
CURRENT CONSUMPTION: 900mA
WATER- AND TIGER PIDDLE-RESISTANT: Light sprinkle-resistance only -- though if a tiger really does piddle on it you've got far bigger problems than a stinky, wet, dead floodight!
SUBMERSIBLE: ¡¡¡EL CONEJITO DE PASCUA CON UN CEPILLO DE DIENTES QUE CAYÓ EN UN HIGIÉNICO DE LOS, NO!!! 
ACCESSORIES: 4x AAA cells
SIZE: 114.10mm L x 76.10mm W 21.80mm D (not incl. switch lever) 41.20mm D (incl. switch lever)
WEIGHT: 113g (3.99 oz.) incl. batteries
COUNTRY OF MANUFACTURE: Unknown, but probably China
WARRANTY: 90 days
PRODUCT RATING:
"Light Switch" LED Floodlight * www.harborfreight.com...
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