20 Watt bright White LED
Suitable for use outdoors
Portable hand-held design with detachable stand
Adjustable lighting angle (-45 to 75)
Up to 6 hours lighting per charge
12v car charger for light on the go
Mains adaptor included
Reviews look positive.
No idea how long it takes to charge. Hoping others can comment so l can snap one up.
Ebay link http://www.ebay.com.au/itm/Portable-Worklight-LED-20-Watt-Rechargeable-/222241775888?hash=item33bea46110 SOLD OUT
What kind of enclosure are you going to use?
have not totally worked that out yet.
thinking of mounting the LED on an old cpu heat sink i have in the shed similar to this one.
maybe utilise an old car headlight for the reflective plate.
surround the headlightreflective plate with appropriately sized PVC pipping (15cm diameter)
cut some perspex for front glass/ or just a very fine wire mesh to prevent anyone or anything touching the led.
handle on top.
some feet on the bottom for stability.
I have the mock up in my head.
thinking of mounting the LED on an old cpu heat sink i have in the shed similar to this one
That looks like it'll break if you knock it over. :)
@altomic: Careful with using PVC, even with a heat sink you'll likely end up heating the PVC up and softening it so that it could sag onto a really hot bit. That's when the problems start.
Grab a thin sheet of steel from somewhere (old sign, chopped up old fridge/washing machine) and fold that into something suitable. Just remember to earth it, but you'd be doing that if you have an exposed heat sink anyway.
@banana365: i'd be drilling multiple holes in the pvc pipe for ventilation as well. but certainly, propensity for melting the PVC is worth monitoring. cheers
Yuck integrated chip. Do not expect much from this chip.
yeah, I'm not. just need a basic and inexpensive light that won't break when I knock it over. I've broken too many spotlight globes due to clumsiness
Maybe put a proper driver in the light also. That one doesn't look safe you will be able to buy the driver for cheap. The set up looks like it will have PWM if you use the stock driver no proper regulation.
Put it inside of these.
https://www.bunnings.com.au/arlec-150w-portable-halogen-work…
@altomic: Easiest way. You would want to use an OP reflector like this one you could also use optics you would want some one thing to smooth the beam. just take out the old gear and place the LED at the back if it fits. The wiring is already done.
Check out this shop its in Melbourne they would have every thing you need. If you need to know any thing shoot me a message i build lights. I buy my LEDs from them. They have heaps of mains to DC drivers and heaps of optics and heat sinks.
https://www.cutter.com.au/categories.php
uses 3 x 18650 batteries
Hmm, at 20W I wonder what the runtime on high is. The 6 hours quoted has gotta be on a pretty low setting.
I assume the 3x 18650 will be in parallel. 20W at 3.7V would be 5.4A. Assuming they use 2500mAh cells that'd be 7.5Ah, so 1.38 hours without considering any regulator losses?
They flicker rather badly
Big clive did a teardown of those LEDs with integrated driving circuitry. What's worrying is that the 20W version already runs very hot, so the 50W version will run even hotter:
https://www.youtube.com/watch?v=KKd2L9Exw0M
The electronics will probably survive for a while, but LEDs usually have worse lifespan the hotter they're run at. Make sure to use a good heatsink…
It's not a cooling problem it's more of a design problem. it's to much in my one circuit. You would need a bigger circuit to cool it. You are getting a lot of heat by dropping the voltage down to what the led can use.
Even if it's got a good heat sink it may still over heat.
Let's be generous and see each of these batteries can supply 10Wh before being recharged, then the light would run for an hour and a half, rather than the claimed 6 hours.
So we can see that the ad specs are wrong, either for running time or power, but most likely for both.
So many tips for altomic's DIY led light. I guess it's true, many hands make light work.
Here is the link to the product on eBay if anyone is interested in using the code.
http://www.ebay.com.au/itm/Portable-Worklight-LED-20-Watt-Re…
20 Watt bright White LED
Cool or Warm?
depends what you wear while holding the light.
rayban sunnies = cool
parker + beanie = warm
It's a very good cool Bright LED . Bought the same one from Masters ( what is that ? ) and its been happy with the quality .
Does this model have dimmable controls? I bought one off Repco a few years back that allowed the brightness to be adjusted. Thinking of buying another one. Thanks.
Thanks OP, don't need it but bought one anyway.
You could try and price match at bunnings https://www.bunnings.com.au/nu-tec-20w-rechargeable-led-work… doubt you could get 10% off of the discounted eBay price, but you should be able to for the sale price.
I have been using this one for around 18+ months 'til now including a few trips to the sea, it's still going strong. Good solid built, cool white light, easily 6+ hours on 1 charge. The only issue is that there's no charging indication LED (can't tell if it's charging / fully charged).
got mine over a year ago as well. agree with the indicator, but in terms of charging doesn't your have a led on the charger?
red is still charging, yellow (more like a green and red led on) is almost charged. green fully charged
love it nice any bright, also carry 3 spare battery if i know im going out long.
otherwise run direct power from a cig plug to the boat.
Oh. I've just had a close look at the original charger, it does have an indicator LED there. Thanks for pointing that out :)
easily 6+ hours on 1 charge
Are there brightness settings? If it's 6 hours at full brightness, it can't be 20W.
Out of stock on ebay.
CARS code doen't work I am in Checkout about to pay and no Deal!!!
CARS code is for eBay. Is that where you are attempting to buy?
Could this light up a quarter of a basketball court ?
Is the price just eBay's 20% off the regular price?
out of stock
Update.
It appears to be back in stock on both the online store and eBay.
0 available / 158 sold
ebay 3hrs later
:(
How many lumens are these?
Comparable 20w LED worklights at Bunnings are 13-1400 lumens…
https://www.bunnings.com.au/arlec-20w-1300lm-led-work-light_…
https://www.bunnings.com.au/arlec-20w-1400lm-led-work-light_…
That's less than I expected. An 18w LED standard light-globe can do 2000lm (though its a different kind of light & not portable).
https://www.bunnings.com.au/philips-18w-es-a-shape-wool-dayl…
Sold out on the SCA website as well as eBay
Just ordered one , back in stock?
Back in stock on Ebay. Just purchased
Any good want to buy 10 and flog them off on scumtree
Cheers, got 4 for work.
Just bought 1. Don't need it but it might come in handy one day :)
Got one on eBay just now, in stock…
yep me too - great!
damn. gone again :(
worth it just for the 3 lipos assuming it comes with them
4 18650s in there.
Just sent them a message as, as expected, the specs were wrong.
Hi,
I received the lights today, however they're not as it says in the ad. You're advertising them as 20W lights that run for up to 6 hours.
On the sticker on the back, it says that they're 8800mAh batteries at 3.7V. This gives a total stored energy of 32.56Wh. Dividing this by 20W gives us a running time of 1.628 hours, or just a quarter over the claimed time.
So either, the light isn't going to run for six hours, the LEDs aren't 20W or most likely both.
Regards,
SCA wouldn't reply to me, so I started a Paypal dispute, below is the outcome!
Dear spludgey,
We're happy to let you know that we've completed our review of case xxxxxxx and decided this case in your favour. You'll receive a $72.00 AUD refund from Super Cheap Auto Pty Ltd.
The refund amount should reflect in your PayPal balance within 5 business days. If you paid with a credit or debit card, the funds are refunded to your card. Otherwise, the amount is refunded to your PayPal account. Please note it can take up to 30 days for the refund to appear on your card statement.
Transaction details
Case ID: xxxxxxx
Seller's name: Super Cheap Auto Pty Ltd
Seller's email: [email protected]
Seller's transaction ID: xxxxxxx
Transaction amount: -$72.00 AUD
Your transaction ID: xxxxxxx
Item name:
Portable Worklight - LED, 20 Watt, Rechargeable
Item number:
xxxxxxx
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Got mine today also. Sort of agree with spludgey comments but have had mine running strong for the last 4+ hours. Will see if they get to the claimed 6+ hours. l don't believe they are 20w but they do give of sufficient lighting for my camping needs without looking like National Lampoons Christmas. Certainly not worth the $65 but at $36 it is still pretty good value. Back in stock on Ebay for $36 for anyone interested. http://www.ebay.com.au/itm/Portable-Worklight-LED-20-Watt-Re…
Received mine today. Fully charged it, then opened it up and took some measurements. The battery pack is set of four 3.7V 2,200mAh cells wired in a 2S2P arrangement. Everything is hot-glued in place.
Power draw was only 6.14 watts - far from the claimed 20 watts.
There is no regulation or protection circuitry visible, just a current-limiting resistor. You can damage the battery by leaving the light running till it's flat. The charging circuitry is in the mains adaptor so it's very important not to use any regular power supply to charge it.
Internal photo here.
At 6.14W, the theoretical max runtime from the 32.56Wh battery pack is 5.3 hours. In reality it'll go for a bit longer, it'll just get dimmer and dimmer to the point of being unusable.
You can damage the battery by leaving the light running till it's flat.
In the manual it states to discharge the battery completely for the first 3 uses?
Mmm, either the cells have internal protection, or they copy/pasted that from another light. :)
It came in handy after power went down in last night's storm - I had it running for a couple of hours.
Apparently power hasn't been restored, so will get another workout tonight.
uses 3 x 18650 batteries
I became curious about the LED spotlight "globe" and had a look on aliexpress.
ended up buying a bare 50W cold white 220v LED for US $2.19 delivered which can be wired to mains. and placed in an appropriate enclosure