With a 9V battery having a capacity of 550mA it would last quite a while. TR Score is a ranking system developed by our team of experts. With a standard Alkaline 9V battery and a 4.7k resistor in series with the LED, it was real bright and consumed a little over 1 mA of current. KORJO Dream Color LED Strip Lights, 32.8ft/10M Bluetooth LED Chasing Light with APP, 12V 300 LEDs 5050 RGB Color Changing Rope Light Kit, Flexible Led Strip Lighting for Home Kitchen. ![]() I did some tests with a super bright white LED. Complicating matters further, the LED driver chips themselves use a tiny bit of current, even when the LEDs themselves are off. Left to run continuously, with a 2100 mAh battery pack, 2100 mAh ÷ 450 mA 4.66 hours.
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