The 50W LED looks about as bright as a 500W halogen, but I've just seen a 100W LED on eBay...
By Julian
Youtuber, shed dweller, solar charge controller aficionado
Good morning all…
Youtuber, shed dweller, solar charge controller aficionado
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Hello dear friend.. I need advice about solar array.. one of panels is faulty how to find it if I have 13 of them in one line?
wouldnt a car battery instantly blow up the dc/dc converter i heard car batterys give out 700 amps when shorted or did you use some kind of voltage limiter
that's pretty bright!!!
The 50W LED may have roughly ten times the luminous efficiency of a conventional incandescent/tungsten bulb but not a halogen fitting. I believe the equivalent to a 50W LED or 500W tungsten incandescent (if there is such a thing) would be around 375W with a halogen bulb to keep the same luminous output.That kinda fits with the amount of light the 50W LED appears to be putting out although it is rather difficult to tell via video. What's your opinion on the brightness Julian, as bright as a 500W halogen or more like 400W?
random question, have you ever had a go at making an over unity device?
From a battery power point of view, or a heat management point of view?
to reach me, please do. mustafabozkurt@gmail.com
I made a 100w led lamp out of it that is portable with a li-ion battery and a step up converter. You can't look into the led when it is on.
Nice vids 🙂
I've ordered a 2nd boost converter. I'll connect the output of one to the input of the other, then play with changing the voltage settings and see what happens. Should be fun!
Yeah that could be quite interesting. It might possibly go to some kind ov discontinuous mode. But say you set the output to 30 volts, so you can be sure the input voltage could never be higher than the output when using that 22v panel. And then, if a fixed load was applied to the output, the input voltage would presumably vary due to the "sag" ov the panel in various light conditions. It would be interesting to see how long the boost convertor could keep the output stable before it collapses.
Yes, but the boost converter cannot operate in buck mode, so the input voltage has to remain below the preset output voltage. If the solar panel had a maximum output of 22 volts, the converter would have to be set at no less than about 24 volts output. Not sure what would happen if the input went over the set output – that's worth making a video about.
Hi Julian….I'm curious about these boost converters. When you set the output voltage does the module keep it regulated to that regardless ov the input voltage? (within it's rated range ov course). Say for example your input was changing dynamically like if you had a solar panel connected straight into it…would it hold the output steady?
Just a block of aluminium, but it's not enough. I've just ordered a 6" x 3" x 1" heatsink and a 100W LED. I'll do a video on it when it arrives.
What kind of heatsink are you using?