Use APKPure App
Get LED Resistor Calculator old version APK for Android
Calculate the right resistence for your LEDs!
Do you like to work with LEDs or would start to but you're afraid of burn them out?
With LED Resistor Calculator all will be simplest!
LED Resistor Calculator will allow you to calculate, with precision, the ideal resistance for the LED you would use, also suggesting how many Watts it should be. The app have a little built-in database with common led values, but you can also insert custom values!
Enjoy!