What is the resistance on each LED in a 2" set of three?
780513
Just took a multi meter to them while off. It read 0.5 ohms across 3 LEDs @ the cut points... Hope that helps.. Doesn't seem right to me for some reason...
1909515
Yes, if you directly apply 5V to event 3 LEDS you will quickly burn them out. Use this equation to find the min resistance needed. Resistance = (power supply voltage - foward voltage LED) / current of LED
1910965
not sure I understand your question, if this is pertaining to the 48 it LEDs, it can take up to 1 amp @ 12volts.
2159178
They are LED of course, so they pull little current. I am assuming much less than one amp. If you are trying to relate them to an incadecent headlight/foglight bulb... 20-25 watts is a guess. They are the brightness that you would expect compared to factory LED strip lights. However, I am frustrated with my second set of these and would not suggest them due to the quality of solderjoints and assembly.
1340740
These are 12 volt. Only 3 LEDs worked on the ones I got, I wouldn't recommend these
41135
I measured amps through each of the LEDs I bought. One shows 24Ma and the other 26ma. As usual when using leds, amperage is negligible unless you are using quite a few or they are superbrights as in stoplights or turnsignals where there are usually more than one led.
2229380
One inverter, one switch, one connector, and 2 12" bulbs in acrylic housings. These things are bright, just don't connect the inverter reverse polarity, it will fry.
713325
The package I received only had the LEDs. Each LED has about a one inch lead on it, so you'll need to find a way to secure them to the battery (probably at least a 9v). If you have a little soldering experience, it's pretty simple to attach a bit of wire. Don't forget the polarity. The flat side of the base of the LED indicates the negative polarity.
1749987
Each cable is about 6 inches, but the connector to attach to the cables is terrible and does not really work. It is better to solder 4 wires to connect the cut LED strips.
509507
What this means is there are 3 leds in each cuttable section which is 2 inches long. So you would get 6 three led sections per foot.
929447
There are seven 1W LEDs in each unit, for a combined output of 7W. The LEDs operate at 3V3 DC at 300mA each inside the unit (3V3 x 300mA = ~1W), which means the power is being converted from delivered AC (at 110V or 265V) to the desired DC before powering the individual LEDs.
1510009
Yes, they will connect two LED strips. The distance between the contacts is about 4 mm.
1003231
The cross section of the 16 ft strip is about 1/2" by 3/16". See my comment to my post. Two of the 3 LED segments have stopped working after one year being exposed to the elements.
742520
The specs on the LED web page say the LED is rated for 3.2 - 3.4 volts & .02 amps. 9 or 12 volts is way too much. You need a resistor in series with the LED. For 9 volts use a 285 ohm resistor, or as near as you can find. For 12 volts, use 435 ohms, or as near as you can find.
1536501
I have 3 strips of LEDs(900 individual LEDs) and in total they take 17 amps. How are you getting 20 amps??There may be no need to double up at the terminals.
643168
Hello,we use the Brightest 3528 SMD LEDs for these,Actual working luminous flux about 420~460Lumens,thanks!
2226242
Don't know about power usage and these are smd without resistor don't buy them unless its for car,RV etc.. look elsewhere on Amazon for bulk led packages