With this pair of Ground-Lift Power Adapters from Watson, you can use your 3-prong devices, appliances, and gear in 2-prong outlets. Even with the loss of the grounding pin, safety is maintained via the built-in grounding tab. The tab attaches to the center screw of your grounded outlet's faceplate, letting you draw more power without risk of shorting out the outlet. The adapters are also UL rated, certifying that they meet all nationally recognized safety standards.