How long will my battery power a Luxeon LED? May 20, 2019 19:12 Updated You will find a very nice battery run time calculator for LEDs here: www.kenworster.com/ledcalc Related articles What are the key differences between the Rebel and Rebel ES LEDs? Can Luxeon LEDs be strobed? I want to replace my existing lighting with Luxeon LEDs. What do I need? Do I need to use a resistor if I am using a driver? How do I power Luxeon LEDs?