1. Introduction
This manual provides essential instructions for the safe and effective use of your Kircuit 12V AC/DC Adapter. This adapter is designed to convert standard AC wall power into the DC power required by compatible devices, specifically various Ottlite LED Desk Lamps.
Compatible Models: Ottlite T5U, Ottlite AY800Z, Ottlite U13A, COSTCO 2121850, Model TY1200150A1mn, Model TY1200150A1m.
2. Product Overview
The Kircuit 12V AC/DC Adapter is a compact and reliable power supply unit. It features a standard two-prong AC plug for wall outlets and a barrel connector for device input.

Figure 2.1: Kircuit 12V AC/DC Adapter. This image displays the main adapter unit with its integrated power cord and barrel connector, ready for use.
Components:
- Adapter Unit: The main body containing the power conversion circuitry.
- AC Plug: Integrated two-prong plug for connecting to a wall outlet.
- DC Output Cable: Attached cable with a barrel connector for connecting to your device.
3. Setup
Follow these steps to properly set up your Kircuit AC/DC Adapter with your compatible device.
- Verify Compatibility: Ensure your device requires a 12V DC input with a 1.5A current rating and has a compatible barrel connector. Refer to your device's original specifications.
- Connect to Device: Insert the barrel connector of the Kircuit adapter's output cable firmly into the DC input port of your Ottlite LED Desk Lamp.
- Connect to Power Outlet: Plug the AC prongs of the adapter into a standard 100-240V AC wall power outlet.
- Power On Device: Once connected, your device should receive power. Turn on your device using its power switch, if applicable.

Figure 3.1: Adapter connected to a power source. This image illustrates the Kircuit adapter plugged into a power strip, demonstrating a typical connection scenario.
4. Operating Instructions
Once properly connected, the Kircuit 12V AC/DC Adapter will continuously supply power to your compatible device. There are no additional operational controls on the adapter itself.
- Ensure the adapter is always plugged into a functional power outlet.
- To disconnect power, unplug the adapter from the wall outlet first, then disconnect from the device.
5. Maintenance
Proper care and maintenance will extend the lifespan of your Kircuit AC/DC Adapter.
- Cleaning: Disconnect the adapter from all power sources before cleaning. Use a soft, dry cloth to wipe the exterior. Do not use liquid cleaners or solvents.
- Storage: Store the adapter in a cool, dry place away from direct sunlight and extreme temperatures. Avoid tightly coiling the cable to prevent damage.
- Handling: Do not drop, disassemble, or attempt to repair the adapter. Avoid exposing it to moisture or excessive force.
6. Troubleshooting
If you encounter issues with your Kircuit AC/DC Adapter, refer to the following common troubleshooting steps:
| Problem | Possible Cause / Solution |
|---|---|
| Device not powering on. |
|
| Adapter feels unusually hot. |
|
| Intermittent power to device. |
|
7. Specifications
Key technical specifications for the Kircuit 12V AC/DC Adapter:
- Input Voltage: 100-240V AC, 50/60Hz
- Output Voltage: 12V DC
- Output Current: 1.5A
- Connector Type: Barrel
- Cable Length: Approximately 6.5 ft
- Color: Black
- Manufacturer: Shenzhen Waweis Technology Co., Ltd

Figure 7.1: Adapter label details. This image provides a close-up view of the adapter's label, displaying input/output specifications and certifications.
8. Warranty and Support
For warranty information or technical support regarding your Kircuit 12V AC/DC Adapter, please contact the manufacturer or your point of purchase. Keep your purchase receipt for warranty claims.
Manufacturer: Kircuit (Shenzhen Waweis Technology Co., Ltd)