LED forward current when operating in these strings is typically around 20 milliamperes (mA) or 0.02 amps. So the red, orange and yellow lamps each use about 40 milliwatts (mW), while the green, blue and white lamps use about 60mW. In contrast, an incandescent bulb would use about 400...
How do mAh ratings affect portable chargers and power banks? The milliampere-hour (mAh) rating of a power bank indicates its energy storage capacity, determining how many times it can recharge your devices before needing a recharge itself. However, due to energy losses during voltage conversion ...