Blue Led Power
| Powered by phpBay Pro |
what current limiting resistor would i need for a power source of 5 volts powering a 20ma blue LED light?
i am tring to mod my ps2 but i can't make a costom LED light, so im trying to make one that goes from the usb into the expansion bay. i allready have extra fans ect so the heat wont be a problem but the usb is to powerfull for the LED so it burns it out, from what i learned i need a current limiting restior right? well i live by radioshack and if someone can tell me the specfics of wicth one i need i would be greatfull,
thanks,
Devon Mclendon
It depends on the rated voltage drop on the LED. This is a number like 2 or 3 volts.
Assuming 2, then R = (5-2)/20ma = 150 ohms
Assuming 3, then R = (5-3)/20ma = 100 ohms
1/4 watt is ok in either case.
If you don't know the voltage rating, start with 2 volt and use a 150 ohm resistor. If you have the ability to measure current, then check to see if you are getting 20mA. If not, you can adjust the resistor.
Items Recently Purchased From This Site:
92-95 TOYOTA MR2 G2 M3 POWERED SIDE MIRROR BLUE/AMBER LED LIGHT CLEAR LENS 93 94, 94 95 96 97 VW PASSAT G2 M3 POWER SIDE MIRROR BLUE/AMBER LED SIGNAL LIGHT SMOKE, 97-01 TOYOTA RAV4 G2 M3 SMOKE POWER SIDE MIRRORS BLUE ARROW LED LIGHT 98 99 00, 89-94 MITSUBISHI ECLIPSE G2 POWERED MIRROR BLUE/AMBER LED SMOKE LENS 90 91 92 93, 1997-2001 DODGE DAKOTA G2 M3 SMOKE POWER MIRROR BLUE ARROW LED TURN SIGNAL LIGHT, 92-98 VW GOLF G2 M3 POWER SIDE MIRROR BLUE/AMBER LED SIGNAL LIGHT SMOKE 93 94, 93-97 TOYOTA COROLLA G2 M3 POWERED MIRROR BLUE/AMBER LED SMOKE LENS 93 94 95 96, 97-01 TOYOTA RAV4 G2 M3 POWER SIDE MIRROR BLUE ARROW LED SIGNAL LIGHT 98 99 00, 89-94 MITSUBISHI ECLIPSE G2 SMOKE POWER MIRROR BLUE ARROW LED LIGHT 90 91 92 93, 90 91 92 93 ACURA INTEGRA 2D 2DR G2-M3 POWER MIRROR BLUE/AMBER LED CLEAR LENS, AA Battery Power 40 LED Blue Christmas String Fairy Lights, 87-90 NISSAN SENTRA G2 M3 SMOKE POWER SIDE MIRRORS BLUE ARROW LED LIGHT 88 89 90, 87-90 NISSAN SENTRA G2 M3 POWER SIDE MIRROR BLUE ARROW LED SIGNAL LIGHT 88 89 90, 87-90 NISSAN SENTRA G2 M3 POWER SIDE MIRROR BLUE/AMBER LED LIGHT SMOKE 88 89 90, 82-93 S10 S15 SONOMA G2 POWER SIDE MIRROR BLUE ARROW LED LIGHT SMOKE 83 84 85 86, 92-95 TOYOTA MR2 G2 M3 POWER SIDE MIRRORS BLUE ARROW LED TURN SIGNAL LIGHT 93 94, 99-06 VW GOLF G2 M3 POWER SIDE MIRROR BLUE/AMBER LED SIGNAL LIGHT CLEAR 00 01 02, BENZ L-SHAPE 6-LED BLUE BULB DRL DAYTIME RUNNING HEAD FOG LIGHTS GMC FORD DODGE, 00-05 TOYOTA CELICA K6 SIDE WING POWER MIRRORS LED BLUE/YELLOW SIGNAL LEFT/RIGHT, 97-01 TOYOTA RAV4 G2 M3 POWER SIDE MIRROR BLUE/AMBER LED LIGHT CLEAR 98 99 00, 87-90 NISSAN SENTRA G2 M3 POWER SIDE MIRROR BLUE/AMBER LED LIGHT CLEAR 88 89 90, 93-97 TOYOTA COROLLA G2 M3 POWERED MIRROR BLUE/AMBER LED CLEAR LENS 93 94 95 96, 92-96 MAZDA MX3 G2 M3 JDM SMOKE POWER MIRROR BLUE ARROW LED TURN SIGNAL 93 94 95, 92-98 VW GOLF G2 M3 POWER SIDE MIRRORS BLUE ARROW LED TURN SIGNAL LIGHT 93 94, 89-94 MITSUBISHI ECLIPSE G2 POWERED MIRROR BLUE/AMBER LED CLEAR LENS 90 91 92 93, 95-99 NISSAN MAXIMA G2 M3 POWER SIDE MIRROR BLUE/AMBER LED LIGHT SMOKE 96 97 98, Blue Shell Colorful Disco Light Battery Powered 14-LED Torch, T10 High Power Blue LED License Light Bulb M158 558, 92-95 HONDA CIVIC 2/3D G2 M3 SMOKE POWER SIDE MIRROR BLUE ARROW LED LIGHT 93 94, 92-95 HONDA CIVIC 4DR 4D G2 M3 POWERED SIDE MIRRORS BLUE ARROW LED LIGHTS 93 94, 92-95 HONDA CIVIC 2/3D G2 M3 POWER MIRROR BLUE/AMBER LED LIGHT CLEAR LENS 93 94, 8-LED BLUE DRL DAYTIME RUNNING HEAD FOG LIGHT w/TURN SIGNAL HONDA JEEP MERCEDES, Aquarium Fish Tank 48 LED Blue Bar Light Lamp & Power, 97-03 FORD F150 TRUCK POWER SIDE MIRROR w/BUILT-IN AMBER/BLUE LED SIGNAL+BRACKET, 88-98 GMC CHEVY C/K C10 FULL SIZE PICKUP G2-M3 POWER MIRROR BLUE ARROW LED LIGHT, 300 Blue PLCC-2 3528 1210 LED SMD Bulb Lamp Car House Power Top Light Chip SMT, 00 01 02 03 04 FORD FOCUS G2-M3 SMOKE POWERED MIRROR BLUE ARROW LED SIGNAL LIGHT, 89-94 NISSAN 240SX S13 K6 SIDE WING POWER MIRRORS LED BLUE ARROW SIGNAL LF/RH, 89-95 BMW E34 525/530/535/540 K6 SIDE WING POWER MIRRORS LED BLUE ARROW SIGNAL, 00-03 DODGE NEON K6 SIDE WING POWER MIRRORS LED BLUE ARROW SIGNAL LEFT/RIGHT, 99-04 FORD MUSTANG K6 SIDE WING POWER MIRRORS LED BLUE ARROW SIGNAL LEFT/RIGHT, 00-05 LEXUS IS300 K6 SIDE WING POWER MIRRORS LED BLUE ARROW SIGNAL LEFT/RIGHT, 95-99 DODGE NEON K6 SIDE WING POWER MIRRORS LED BLUE ARROW SIGNAL LEFT/RIGHT, 89-94 NISSAN 240SX S13 K6 SIDE WING POWER MIRRORS LED BLUE ARROW SIGNAL LF/RH, 00-05 LEXUS IS300 K6 SIDE WING POWER MIRRORS LED BLUE ARROW SIGNAL LEFT/RIGHT, 97-98 NISSAN 240SX S14 K6 SIDE WING POWER MIRRORS LED BLUE ARROW SIGNAL LH/RH, 95-96 NISSAN 240SX S14 K6 SIDE WING POWER MIRRORS LED BLUE ARROW SIGNAL LH/RH, 97-01 TOYOTA CAMRY K6 SIDE WING POWER MIRRORS LED BLUE ARROW SIGNAL LEFT/RIGHT, 02-05 SUBARU IMPREZA/WRX K6 SIDE WING POWER MIRRORS LED BLUE ARROW SIGNAL LH/RH, 03-08 TOYOTA MATRIX K6 SIDE WING POWER MIRRORS LED BLUE ARROW SIGNAL LEFT/RIGHT,
| Powered by phpBay Pro |