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Hello Insignia Customer! Thank you for your question. On the Insignia 10‑Outlet Surge Protector (model NS‑PWSU1028), the two indicators show the safety status of your connection: Grounded means the wall outlet you’re using has a proper ground connection. Protected means the surge protection inside the strip is active and your devices are being safeguarded. Sidhartha | Insignia2 mo
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