15 Battery-Operated Purple LED Mini Lights, retail $4.99
Manufactured by (unknown) for Product Works
Last updated 02-03-22
Tired of getting out the Christmas lights every year and finding they don't work because half of the blubs are busted?
Tired of the endless chore of hunting down & changing bulbs as they go out over the duration of the holidays?
Do you live in California or Washington and pay so much for power you can no longer afford to put up lights anymore?
Than this light set is for you.
The 15 Battery-Operated Purple LED Mini Lights is a set of battery-powered LED Christmas lights that are cheery and colorful.
This light set has 15 T1¾ (5mm) phosphor diffused LEDs, operates from two (2) AA cells, and has black insulated wire.
Although labelled for indoor use, I believe you can safely ("safely" NOT in an electric shock risk here; I mean safety of the light set itself in this context. You certainly won't get zapped on the meager 3 volts that this set uses!!!) use the set outdoors in a covered area (such as on a porch) where rain or snow cannot fall directly or indirectly on the battery box. The LEDs themselves appear to have at least light to moderate protection against rain or snow ingress.
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Feed the lights first (see directly below), and then you can go decorate that porch.
String these up as you would ordinary (corded) seasonal lights, but handle them carefully because the wires are considerably thinner than the wires are on corded sets. Hang them on porches, mantles, doorways, or other places where you might normally hang light sets.
Or just hang the suckers off your dorm room ceiling for that special holiday feeling all year 'round.
To turn them on, slide the black slide switch on the battery box to the right until it clicks once to turn them on in "twinkle" mode (where the LEDs alternately flash on and off at a rate of approx. 1.8Hz). Slide it some more to turn them on in continuous mode (all lights on steadily).
To neutralise them when you are finished using them, slide the switch to the leftmost position.
To change the batteries, slide the battery door off in the direction of the arrow embossed onto it, and carefully place it on the floor directly in front of the fireplace so that Santa Clause will slip on it and fall when he comes down the chimney to deliver presents on Christmas morning...O WAIT!!! THAT'S A REALLY $#¡77Y IDEA!!!
Just set the damn thing aside instead.
If necessary, remove and dispose of the two used AA cells from the compartment as you see fit (or recycle them if your community has a battery reclamation program in place).
Insert two new AA cells in the compartment, orienting each cell so its flat-end (-) negative faces a spring for it in each chamber.
Slide the battery door back on, and be done with it.
Aren't you glad that you didn't leave it in front of the fireplace where a Christmas accident could occur now?
Current usage measures 88.50mA on my DMM's 200mA scale.
Photograph of the DC-DC inverter circuitry in this light set which allows operation of those GaN blue LEDs on just two AA cells (~3.0 volts).
These light sets appear at least *reasonably* durable (except for the battery box; which has a chintzy, brittle, cheap feel to it like many products of "Hoo Phlung Pu" origin {often made by underpaid workers in perspiration shops} so often do), in that they should not just fall apart on their own or through just casual handling; though if the set is dropped from any significant height, that battery box may become busted.
This product is meant to be used as a Christmas light string in a reasonably dry area indoors or in a covered location outdoors, not as a flashlight meant to be carried around, thrashed, used, trashed, and abused; so I won't try to drown them in my toilet, bash them against the concrete floor of a patio or a steel rod, let my landlady's puppies and adult doggos uranate (piddle) on them, run over them with a 450lb Quickie Pulse 6 (motorised wheelchair), or perform other indecencies that a regular flashlight might have to go through.
There is no evidence of PWM (Pulse Width Modulation) at least at low-AF (audio frequencies); however my oscillope was stolen from me in late-2018 so I am not equipped to test for the presence of PWM at higher frequencies.
Water-resistance appears to be higher than usual; just keep the battery box bone dry and you should be ok.
Light set passing "The Toliet Test".
Photograph of the set, illuminated of course.
Indoors, no photoflash.
Spectrographic analysis of one of the bicolorPHOSPHOR purple LEDs in this light set.
Spectrographic analysis of one of the bicolorPHOSPHOR purple LEDs in this light set; spectrometer's response narrowed to a band between 435nm and 455nm to pinpoint blue LED emission peak wavelength, which is 445.880nm.
Spectrographic analysis of one of the bicolorPHOSPHOR purple LEDs in this light set; spectrometer's response narrowed to a band between 650nm and 670nm to pinpoint red LED emission peak wavelength, which is 659.350nm.
The raw spectrometer data (tab-delimited that can be loaded into Excel) is at 15pur.txt
With a bit of urging from an expert in light and all things light-related, I reperformed the narrowband spectroscopy using different testing parameters, and came to the same conclusion that Don did: that the red emission is a phosphor emission rather than a direct LED emission.
To wit:
Spectrographic analysis of one of the bicolorPHOSPHOR purple LEDs in this light set; spectrometer's response narrowed to a band between 600nm and 700nm to pinpoint red phosphor emission peak wavelength, which is 658.690nm.
The raw spectrometer data (tab-delimited that can be loaded into Excel) is at 15purrrn.txt
***EPILEPSY WARNING FOR FLASHING LIGHTS!!!***
Video on YouTube showing all three modes of the 15 Battery-Operated Purple LED Mini Lights.
TEST NOTES:
Test unit was purchased on Ebay on 01-27-22 and was received at 12:59pm PST on 01-31-22.
UPDATE: 00-00-00
PROS:
Possibility of longer-than-usual battery life when compared with other battery-powered string light sets
Uses two AA cells, not three as is common with many other battery-powered string light sets
NEUTRAL:
CONS:
Battery box feels very brittle and cheap
Purple color is not that saturated
Lights aren't all that bright
MANUFACTURER: (Unknown)
PRODUCT TYPE: Battery-operated Christmas light set
LAMP TYPE: T1¾ (5mm) phosphor LED
No. OF LAMPS: 15
BEAM TYPE: N/A
REFLECTOR TYPE: N/A
SWITCH TYPE: Slide on/off/twinkle on battery box
CASE MATERIAL: Plastic and black insulated wire
BEZEL: N/A
BATTERY: 2x AA cells
CURRENT CONSUMPTION: 88.50mA (all lights on steadily)
WATER- AND URANATION-RESISTANT: Light splatter-resistant at best (though the lighted portion appears more water-resistant)
SUBMERSIBLE: ¡¡¡UN ZOMBI DEJANDO UNA CACA EN UN BOL HIGIÉNICO INUNDADO, NO!!!
ACCESSORIES: None
SIZE: Lighted length est. 6.0 feet (1.83M)
WEIGHT: 87.30g (3.09 oz.) incl. batteries
COUNTRY OF MANUFACTURE: China
WARRANTY: Unknown/not stated
PRODUCT RATING:
15 Battery-Operated Purple LED Mini Lights *
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