CCTV Power Supply Calculator
CCTV cameras draw significantly more power at night when Infrared (IR) night-vision LEDs activate. Calculate total system load, wire voltage drop, and size your central 12V DC power distribution box correctly.
Camera & Hardware Inventory
12V DC LoadsProvides 25%+ continuous headroom for peak night-time IR surge.
Many DIY security installations work perfectly during daylight, but the moment the sun sets and all Infrared LEDs click on simultaneously, the power supply sags below 10.5V. The cameras enter endless reboot loops until dawn! Always size your central box for Night Peak Current.
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