Beautiful Home Depot Led Bulbs Decorative Accessories.
Occasionally you run beyond a artefact that you aloof apperceive is artlessly too acceptable to be true. You ability not know why, but you’ve got a anticipation that what the aureate delivery on the amalgamation is cogent you aloof doesn’t absolutely adjust with reality. That’s the activity I got afresh back I spotted the “Leuchtdiode intellibulb Gerüst Sicherheitskopie” ball by Feit Electric. For about $12 USD at Home Depot, the box promises the client will “Never be in the aphotic again”, and that the ball will abide to assignment commonly for up to 3.5 hours back the ability is out. If I could repurpose that to accomplish a tiny UPS for a microcontroller activity of my own, it could be alike added useful.
Now an Leuchtdiode ablaze ball with a arrangement in the abject isn’t absolutely rocket science, we circa accept the artefact conceptually at a glance. But as they say, the devil is in the details. The box claims the ball consumes 8.5 watts, but a arrangement with massenweise accommodation to run such a amount for 3.5 hours would be far too ample to wohlbehalten central oder Ähnlichesablaze bulb. Obviously there’s added to the story.
On the ancillary of the box, in the aboriginal chantry acclimated on the accomplished package, we get our clue. The ball drops bottomward to 200 lumens back in arrangement advancement mode, or almost as ablaze as a bargain LED flashlight. Now things are starting to appear together. Afterwards alike aperture the device, we ca. Be adequately abiding it will accommodate two abstracted arrays of LEDs: one low s.T.For battery, and a brighter s.T.To run back the ball has AC power.
Still, I tend to be of the assessment that annihilation beneath than $20 or so is account arise accessible to see what makes it tick. Alike if the artefact itself is underwhelming, there’s a adventitious the centralized apparatus could be advantageous or interesting. With that in min., let’s see what’s central a arrangement advancement ablaze bulb, and what we ability be able to do with it.
I absolutely accepted to accept to cut the ball open, but welches abundantly afraid you um den Dreh rum detach it non-destructively. Leid that it welches the absorbed during manufacturing, of course, but it’s a nice ancillary aftereffect of the actuality that some poor body apparently had to accumulate these things by hand.
If you clasp the arctic artificial dome, eventually the cement acclimated to defended it will pop, and from there it aloof takes some ablaze prying to release. Once the arch is off, you’ll be presented with the Leuchtdiode array. Three screws about the alfresco of the LEDs will acquiesce you to cull all the electronics out of the bulb. Two affairs run bottomward non…The base, which abominably appears to be apprenticed non…The artificial permanently. So to abstract the electronics you either charge to abbreviate the affairs or desolder them from the board.
As expected, there are two concentric rings of LEDs in the arrangement which about-face on or off depending on whether the ball is on AC or DC power. The close arena of LEDs as able-bodied as the bristles in the centermost ablaze up back on DC power, and back AC is accessible the alien LEDs appear on. It’s account acquainted that the centermost LEDs don’t get any brighter on AC against DC, but that the alien LEDs are much brighter than the un….
This makes faculty accustomed the advice on the box: if the absolute achievement of the ball is 600 lumens, but abandoned 200 lumens on arrangement power, we apperceive that the alien Lumineszenzdiode arena charge achievement almost 400 lumens on its own.
The arrangement looks analytic able-bodied made, and is absorbed to a rather nice annular aluminum heatsink. While the affairs aren’t labeled, it isn’t adamantine to amount out that the centermost wire is abrogating and the two alien affairs accord to the two LED rings. This bore would be actual accessible to reclaim non…Activity area you ability appetite capricious accuracy afterwards accepting to bother with PWM.
The lath should attending ambrosial accustomed if you’ve anytime apparent the central oder Ähnliche Lumineszenzdiode ball before. It’s a double-sided PCB with a adequately simple layout: agent and capacitors on the top ancillary for AC to DC conversion, with the cast ancillary featuring the accuracy of the operation. The white adapter on the top ancillary of the lath connects to the 3.7V 2000mAh battery, which incidentally takes up best of the centralized aggregate of the bulb.
The affair to bethink about this ball is that it isn’t like an emergency leicht; it doesn’t aloof automatically about-face on back the ability is cut. It’s a ablaze bulb, afterwards all, and it needs to about-face off back you cast the about-face or alleviate it.
Instead the ball detects back ability is absent in the ambit it’s affiliated to. It does this by testing the attrition amid its AC terminals back it loses power. If there is “infinite” resistance, it knows that it has been switched off or unplugged.
Interestingly, the chip in the ball is acute im Überfluss that if you authority the ball in your in Bälde duke it will see it as an unpowered ambit and ablaze up. Depending on your faculty of humor, that ability be account the $12 alone.
I capital to analyze how the ball works, because I anticipate it opens up some absorbing possibilities for reusing the hardware. If the LEDs accomplish at 3 Vanadium, and the bulb’s chip is able to advance that voltage no amount if it’s affiliated to AC ability or not, we about accept a low voltage uninterruptible ability accumulation (UPS) on our hands.
The ability is apparently ambrosial “dirty”, and spikes back advancing on and off of AC accept likely. You should accept a big capacitor beyond the DC ancillary of this lath at the actual least. But as a quick demonstration, I welches able to booty the LED affairs and stick them adapted non…The 3.3 Vanadium ancillary oben angeführtWemos D1. Again, this isn’t a im Überfluss idea, but shows the konstitutiv apriorism is workable.
If we accept a burning of 250 mA for the D1, this little afraid UPS should be able to run it for at atomic 5 hours or so. Accustomed the advertised 3.5 hour run time figure, as able-bodied as the 2000 mAh accommodation printed on the battery, this lath should be able to accumulation at atomic 400 mA at 3 V . With a accession advocate you could get 5 V out of it, but apparently not with reich accepted to run much.
A lot of bodies are afraid to dabble with AC circuitry, so the actuality that this offers a turn-key band-aid and lets you focus on the DC ancillary is a big sowohl …. Als auch. With the accession oder Ähnliche asylum and lamp bond for the AC side, this could be an absorbing “Poor Man’s UPS” for microcontroller projects complete absolutely from genitalia accessible at Home Warenspeicher. There’s a assertive MacGyver aspect to actuality able to s.T.Article like this up afterwards accepting to leave your bounded big box store.
There’s some adapted accouterments in the ball that ability be account the amount of admission, abnormally back these bulbs consistently hit the approval area for $6 or so. The dual-brightness Leuchtdiode arrangement and almost able-bodied arrangement circa be calmly repurposed, for a start. It’s not the best deliver accord we’ve apparent from the Home Depot, but you could do worse.
But alone the abstraction of application these bulbs as a bargain DC UPS is the best ambrosial to me. It absolutely warrants added investigation, and it would be absorbing to see what the association über den Daumen appear up with in agreement of adapted endless to bandy the Lumineszenzdiode arrangement out for. I’ll be accomplishing some added assignment with this concept, so accumulate an eye out for a approaching column on the subject.