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AcidMods Resources ----- ( These are helpful tools for modding ) => Electronics Projects => Topic started by: whitetop on February 20, 2011, 12:04:17 PM

Title: will this be ok
Post by: whitetop on February 20, 2011, 12:04:17 PM: since ive got really nothing till i move home i cannot check this would this lamp work for my desk just made with pcb wizard just want to build one so i can dress it up :huh:
dont say buy one as i dont want to.

ive put here cos i cannot find a general mod area

(https://acidmods.com/forum/proxy.php?request=http%3A%2F%2Fimg59.imageshack.us%2Fimg59%2F2618%2Fimage3ky.jpg&hash=b3207936b31f1b2a9de8b12843a3ba95a02b0c4a)
Title: Re: will this be ok
Post by: jrfhoutx on February 20, 2011, 03:19:43 PM: add resistors and I think you'd be good
Title: Re: will this be ok
Post by: crazy-modder on February 20, 2011, 03:26:59 PM: Whats the voltage requirements on the leds? I bought some badass 5mm leds that are 12v. They are incredibly bright.
Title: Re: will this be ok
Post by: whitetop on February 20, 2011, 03:27:25 PM: i have one abit like this but not compact and dont use resistors. ill keep telling my dad to bring the multimeter up as i cannot do much with out it.
Post Merge: February 20, 2011, 03:28:14 PM
Quote from: crazy-modder on February 20, 2011, 03:26:59 PM
Whats the voltage requirements on the leds? I bought some badass 5mm leds that are 12v. They are incredibly bright.

well pcb wizard says 5mm
Title: Re: will this be ok
Post by: geraldrubalcava on February 20, 2011, 10:24:23 PM: here is a awesome article you would love. as usual i suggest you putthem in parrallel-series. and always add a resistor :)

http://www.horrorseek.com/home/halloween/wolfstone/Lighting/litlpo_PoweringLEDs.html (http://www.horrorseek.com/home/halloween/wolfstone/Lighting/litlpo_PoweringLEDs.html)
Title: Re: will this be ok
Post by: whitetop on February 21, 2011, 03:25:46 AM: thx for the link

would be nice with a resistor but why if theirs none on my other one?
Title: Re: will this be ok
Post by: geraldrubalcava on February 21, 2011, 08:49:07 AM: well its advised to use a resistor. so the led wont burn out as quickly. but hope the led website helps out :)
Title: Re: will this be ok
Post by: Famas on February 21, 2011, 02:20:38 PM: yea when im wiring in parallel to 5mm leds im guessing white i use anything from 100 ohm resistors to 330 if you want them the brightest possible i use 100 or 150 ohm but for safety i use 330 and on the pcb make sure instead of the wire coming off you have to square terminal connections then you can just use a pcb drill and youll be good to go best of luck for my office lamp i used about 6 white leds and it was great
and im guessing youll be using 12v dc

admin mm- this is not entierly correct.
Title: Re: will this be ok
Post by: Modded Matt on February 21, 2011, 03:45:30 PM: ok, I doont know how to keep stressing this until everyone gets it. resistors are not guessng games, and if you want a brighter led, buy the correct one, dont over power it. there is a reason it is called ohms LAW and not ohms maybe....

you need to use the correct resistor forthe correct condition.

@gerald, that site is a great read, I recomend everyone reading this has a look at it

@wite top, I wuld assume there is a transformer of some sort on the power supply limiting current somewhere.
Title: Re: will this be ok
Post by: whitetop on February 21, 2011, 04:48:47 PM: my other plugs right into my pc's usb ive looked on ones abit like mine and they use a 100k resistor but ill read that link just dont get how i made the last lamp and forgot how i did it lol