Main Restorations Software Audio/Jukebox/MP3 Everything Else Buy/Sell/Trade
Project Announcements Monitor/Video GroovyMAME Merit/JVL Touchscreen Meet Up Retail Vendors
Driving & Racing Woodworking Software Support Forums Consoles Project Arcade Reviews
Automated Projects Artwork Frontend Support Forums Pinball Forum Discussion Old Boards
Raspberry Pi & Dev Board controls.dat Linux Miscellaneous Arcade Wiki Discussion Old Archives
Lightguns Arcade1Up Try the site in https mode Site News

Unread posts | New Replies | Recent posts | Rules | Chatroom | Wiki | File Repository | RSS | Submit news

  

Author Topic: LEDs and Resitstors  (Read 1008 times)

0 Members and 1 Guest are viewing this topic.

whiteraven

  • Trade Count: (0)
  • Full Member
  • ***
  • Offline Offline
  • Posts: 14
  • Last login:February 17, 2012, 04:56:58 pm
  • I'm a llama!
LEDs and Resitstors
« on: July 04, 2004, 04:40:25 am »
I got a mixed bag of "12 Volt LED CAR BULBS" from www.superbrightleds.com and I want to hook them up to my computers power supply.  It was mentioned that resistors were needed and this is what I need help with.

What type of resistor do I need?

here are the specs for the leds:

Single LED Wedge Base Bulbs

Voltage: 12~14 VDC

Current: 20~25 mA

Size: 8mm x 24mm


I have some of the 4 bulb leds aswell but I think that the specs would be similar to the single LED bulbs mentioned above.


Please not that I live in Ireland and we don't have Radio Shack over here.  So once I know what type of resistor I need it may be a misson to find somewhere that has them for sale.

D_Zoot

  • Trade Count: (0)
  • Full Member
  • ***
  • Offline Offline
  • Posts: 402
  • Last login:November 18, 2010, 03:59:37 pm
  • Sorry if I get any spit on you...
Re:LEDs and Resitstors
« Reply #1 on: July 04, 2004, 10:45:37 am »
Generally it's true you need to use current limiting resistors with LED's, but those already have the resistors made into them for connection to a 12v supply.

They were made for automotive applications, which also happens to be 12v.  So you should be able to hook them right up/plug 'em in.


D

whiteraven

  • Trade Count: (0)
  • Full Member
  • ***
  • Offline Offline
  • Posts: 14
  • Last login:February 17, 2012, 04:56:58 pm
  • I'm a llama!
Re:LEDs and Resitstors
« Reply #2 on: July 04, 2004, 02:32:21 pm »
Excellent!  Thanks, it was something that was wondering about.