- Joined
- May 23, 2001
- Location
- Asteroid B-612
THen run them off 5v and forget the resistorsXevuhtess7 said:
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Lazer LED's
- Thread starter Xevuhtess7
- Start date
OP
- Joined
- Apr 21, 2002
- Location
- Boston Area
- Thread Starter
- #22
by that you mean the 5v line on the power connector? by the way, where can i get the spare power connectors, i'd rather not chop up my fans cause my parents would be like "AAHH YOURE WASTING MONEY"
- Joined
- May 23, 2001
- Location
- Asteroid B-612
OP
- Joined
- Apr 21, 2002
- Location
- Boston Area
- Thread Starter
- #25
hmm, as i was leaving for school this morning i noticed on a table a pack of heatshrink that my dad must have bought. wait what is it for again?
- Joined
- May 23, 2001
- Location
- Asteroid B-612
Xevuhtess7 said:
It's for insulating your soldered connections. Just slip it onto one of the wire you're solvering and after you've made a nicely solder joinging of two wires, slip it over the soldered connection.
You can shrink it with a lighter or heat gun.
OP
- Joined
- Apr 21, 2002
- Location
- Boston Area
- Thread Starter
- #27
aahh ok. by the way are the lazer led's so bright cause they are like special types of led's that are superbright or sumtin? or can the normal led's on those websitse work just as well.
- Joined
- Nov 28, 2001
Xevuhtess7 - LEDs 101
9000mcd and only $1? They've gotta be a rip and being way over rated. 6000mcd white LEDs sell for $2+ each. 9000 would fetch $3.50+ easily. The prices for all those LEDs are just too good to be true for the mcd ratings thier stating. I'm going to have to buy a batch of each and test them out. I wouldn't be surprised if their not even reaching half thier rating at full intensity.
On the other hand, if your not looking for excellent quality, even lighting patterns, and even coloring, they sould be just fine for less then critical applications.
Starfoxer said:
9000mcd and only $1? They've gotta be a rip and being way over rated. 6000mcd white LEDs sell for $2+ each. 9000 would fetch $3.50+ easily. The prices for all those LEDs are just too good to be true for the mcd ratings thier stating. I'm going to have to buy a batch of each and test them out. I wouldn't be surprised if their not even reaching half thier rating at full intensity.
On the other hand, if your not looking for excellent quality, even lighting patterns, and even coloring, they sould be just fine for less then critical applications.
OP
- Joined
- Apr 21, 2002
- Location
- Boston Area
- Thread Starter
- #29
ok i tried reading that.... and all i was thinking was "what the friggin hell?". that site was like a foreign language to me hahaha. i dont really get what the document's purpose is.
- Joined
- Dec 13, 2001
- Location
- Tulsa, OK
Xevuhtess7 said:
ok, ill try to make this easy to understand. you know what the 12volt and 5 volts lines are, so thats a start. the most basic formula in electrical engineering is V = I * R. V is potential (measured in volts). I is current (in amps, or milliamps, whatever the case may be) and R is resistance (measured in ohms) you lets say that you have a 12 volt system. if you have a 4 ohm resistor in there, your equation looks like 12 = I * 4. you can use a little simple algebra, and you get a current of 3 amps. if you increase the voltage, and dont change the resistance, the current (I in the formula) has to increase in order to keep the equation in balance. a resistor just "resists" the flow of electrons through it (or the flow of electricity throug it), usually dissipating the extra energy as heat. this resistance to the flow of electricity causes a "voltage drop." this is why adding the resistor on the 12volt line causes the voltage to drop from 12v to 5v that the led wants. i hope i didnt confuse the heck out of you with that
. good luck!- Joined
- Nov 23, 2002
- Location
- Elkins Park, PA
Mpegger said:
I am sorry you feel this way, but I assure you the 9000mcd LED does have a maximum output of 9000mcd. There are two reasons why they are so cheap. First, my dad is an importer so he bought this stuff for me direct from the manufacturer with no middle guys. And second, my business strategy is not to make money from one time customers, but to have customers who are happy and will come back to buy more. I would also appreciate any comments that may help with my site or how I conduct business.
Thank you
