How to make USB LED LAMP
Uploader Comments (goodpaste)
All Comments (17)
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Is there a way to avoid using resistors ? (in order to use 5Volt LED diodes)
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@zhymka USB specs state this port can deliver up to 500mA at 5 volts. This configuration with 7 LEDs is probably drawing between 130mA to 160mA. And that's a generous estimate. Using a 200 Ohms resistor I can't see the LEDs receiving 20mA but more in the range of 10mA.
Kind of brazen of you to call this amateur work and you write such an amateur comment.
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@Roh1290 from the wiring diagram in the video it appears to be parallel. with 5 volts from USB port and the use of white LEDs it almost has to be a parallel configuration. white LEDs typically require at least 3 volts.
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i made the same with a batterie charger and mine is blinking ;D
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dude thanks for your video , Dude tell me 1 thing weather u have connected the LED in series or parallel that's the only doubt i had
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@goodpaste OKey! be sure to check out mine also.. I think you might like them...
It is wrong. First of all current is to weak for such number or leds. Second it is a wrong way to regulate diod, it can be demaged. Diods light intensity should be regulated through impulsive current module.
In short way, it is amateur work.
zhymka 3 months ago
@zhymka however this works...
goodpaste 3 months ago
Are those 3V LEDs?
JotaLegendOfficial 7 months ago
@JotaLegendOfficial Yes , read desc....
goodpaste 7 months ago
@goodpaste yeah, I kindda rushed.. Thanks! nice vid..
JotaLegendOfficial 7 months ago
@JotaLegendOfficial np , thnaks ;) check my other videos ;) SUB :D
goodpaste 7 months ago