Timeline for How much resistor does an LED lamp need?
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
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| Jun 30, 2020 at 12:38 | comment | added | Helper | Thanks for your answer. As I stated above I will try to use 9V and start from there. I will study your calculations and use them with the answer of @BrianB and see how far I can get. | |
| Jun 30, 2020 at 12:37 | vote | accept | Helper | ||
| Jun 29, 2020 at 21:14 | comment | added | BrianB | You can find the actual voltage drop for your LED from it's spec(data) sheet. It will be listed as V_f. The datasheet will also tell you the forward current rating (I_f). These are the values to use in the calculations that @boo gave you. If you buy your LEDs from someplace like Mouser/Digikey/Farnell, they should have links to the datasheets right on the ordering page for the part. | |
| Jun 29, 2020 at 19:26 | review | First posts | |||
| Jun 30, 2020 at 6:01 | |||||
| Jun 29, 2020 at 19:19 | history | answered | boo | CC BY-SA 4.0 |