What is 12V DC +-30%?
12V DC +-30%" typically refers to the voltage range of a power supply or device that operates on a 12-volt direct current (DC) power source.
The "+-30%" indicates that the voltage can fluctuate up to 30% in either direction, meaning that the voltage range could be anywhere between 8.4V and 15.6V. This range is often specified to ensure that the device can still function properly even if there are minor fluctuations in the power supply.