Power adapter/inverter Gamber-Johnson POWER ADAPTER 120 W for laptops, input 11–16 V, indoor, black

Gamber-Johnson POWER ADAPTER 120 W is an indoor DC-to-DC power adapter and inverter designed to provide regulated 20 V output power from 11–16 V DC sources. Finished in black and housed in sealed aluminum extrusions, the unit supplies up to 120 W to compatible laptops and tablets, supporting both device operation and charging of internal batteries. The adapter is intended for mobile or vehicle installations where a stable DC power supply is required for rugged computing equipment.

Advantages

The adapter delivers a stable 20 V output with built-in power surge protection and input regulation to protect connected devices. Its rugged, sealed and potted aluminum construction offers resistance to dust, moisture and high humidity, making it suitable for harsh environments. Bare wire leads allow straightforward integration into vehicle or custom mobile power systems, and the compact footprint supports space-constrained installations.

Suitable for

Key specifications

How to use

Install the adapter in a dry, ventilated area inside the vehicle or mobile enclosure, ensuring secure mounting to minimize vibration. Connect the bare wire input leads to a suitable 11–16 V DC source using correct gauge wiring and appropriate fusing on the supply side. Connect the 20 V output to the laptop or tablet power input using the appropriate cable or adapter for the device. Verify polarity and secure connections before powering on. Follow device manufacturer guidelines for charging and operation while the adapter is supplying power.

Recommendations

Use inline fusing on the DC supply to protect wiring and the adapter. Avoid exposure to direct water ingress and provide ventilation to dissipate heat during continuous high-power operation. Confirm compatibility with the target laptop or tablet model and ensure correct wiring polarity to prevent damage.