Friday, January 15, 2010

Colt 9 Aggressive Inline Skates What Batteries Will I Need To Light 14 1.9 Colt LEDs?

What batteries will i need to light 14 1.9 colt LEDs? - colt 9 aggressive inline skates

Tell me, what I need help with resistors

Posted by Admin at 9:35 PM

3 comments:

billruss... said...

can use two 1.5 volt batteries, a resistor and an LED drive. The resistance depends on the desired course. For a current of 20 mA, where R = (is 3-1,9) / 0.02 = 50 ohms.

You will have 14 of these channels, all connected in parallel to 3 volts.

An alternative is to use a torch 6 volt battery, with two LEDs in series 1 and resistance. Price would be (6-3.8) / 0.020 = 110 ohms. You would have 7 Strands with 1 and R 2 LEDs.

And there are other possibiliies.

.

January 20, 2010 at 3:19 AM
billruss... said...

can use two 1.5 volt batteries, a resistor and an LED drive. The resistance depends on the desired course. For a current of 20 mA, where R = (is 3-1,9) / 0.02 = 50 ohms.

You will have 14 of these channels, all connected in parallel to 3 volts.

An alternative is to use a torch 6 volt battery, with two LEDs in series 1 and resistance. Price would be (6-3.8) / 0.020 = 110 ohms. You would have 7 Strands with 1 and R 2 LEDs.

And there are other possibiliies.

.

January 20, 2010 at 3:20 AM
billruss... said...

can use two 1.5 volt batteries, a resistor and an LED drive. The resistance depends on the desired course. For a current of 20 mA, where R = (is 3-1,9) / 0.02 = 50 ohms.

You will have 14 of these channels, all connected in parallel to 3 volts.

An alternative is to use a torch 6 volt battery, with two LEDs in series 1 and resistance. Price would be (6-3.8) / 0.020 = 110 ohms. You would have 7 Strands with 1 and R 2 LEDs.

And there are other possibiliies.

.

January 20, 2010 at 3:20 AM

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