I'm trying to make a plug-in Led light for my room and I'm using a 6.5 W Luxeon K2 with the LXK2-PW14-U00 bin. (http://www.ledsupply.com/05027-pw14.php)
Anyways I have a 12 v transformer I found to use with it. It is rated for 6V at 300 mA, but I measured it at 12.68V. I did the calculations, and unless I'm wrong then I should need about 6 ohms for my resistor. I purchased a bunch of resistors earlier and I chose to use a 10 ohm resistor. I soldered it up and within seconds the resistor was so hot it burned me. I quickly shut it off and found another, bulkier resistor, that hopefully wouldn't have the same problem, but no, after a few seconds of power it was noticeably hot. I don't know what I have to do to make this system work. I am an idiot when it comes to electronics, so can anyone tell me what I'm doing wrong? Where would I get a resistor strong enough to handle this amount of current or voltage?
Anyways I have a 12 v transformer I found to use with it. It is rated for 6V at 300 mA, but I measured it at 12.68V. I did the calculations, and unless I'm wrong then I should need about 6 ohms for my resistor. I purchased a bunch of resistors earlier and I chose to use a 10 ohm resistor. I soldered it up and within seconds the resistor was so hot it burned me. I quickly shut it off and found another, bulkier resistor, that hopefully wouldn't have the same problem, but no, after a few seconds of power it was noticeably hot. I don't know what I have to do to make this system work. I am an idiot when it comes to electronics, so can anyone tell me what I'm doing wrong? Where would I get a resistor strong enough to handle this amount of current or voltage?
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