Helpful for basic battery, outlet, charger, and electrical troubleshooting.
Paid link: View on AmazonAffiliate disclosure: As an Amazon Associate I earn from qualifying purchases.
Browse by color
Light color guide
Start with the color of the light, then narrow it down by device and blink pattern.
Red
Red Light
Red lights often indicate alerts, errors, warnings, low battery, overheating, blocked sensors, or urgent status states depending on the device.
Orange
Orange Light
Orange lights often point to setup, connection, charging, caution, firmware, or service-needed states.
Amber
Amber Light
Amber lights are commonly used for caution, standby, partial connection, pending action, or maintenance states.
Yellow
Yellow Light
Yellow lights usually mean caution, attention needed, maintenance, low battery, or setup mode.
Green
Green Light
Green lights usually mean power, ready, connected, charged, normal status, or successful operation.
Blue
Blue Light
Blue lights often indicate pairing, Wi-Fi setup, Bluetooth, connection, syncing, or active status.
White
White Light
White lights are often used for power, standby, ready, booting, pairing, or normal operation depending on the device.
Purple
Purple Light
Purple lights often indicate setup mode, blocked internet, mesh connection issues, or special device states.
Still not sure what your light means?
Use the resources page to keep narrowing it down by color, blinking pattern, and device type.
Find more troubleshooting helpRecommended products
Helpful light troubleshooting starter tools
These products fit broad light meaning, blinking light, and device color guide pages.
Useful for checking common outlet and GFCI wiring problems.
Paid link: View on AmazonA beginner-friendly tool for reading common check engine and dashboard warning codes.
Paid link: View on AmazonMatch the tool to the device, vehicle, outlet, or battery before buying. These are paid Amazon links, and exact compatibility can vary by device, vehicle, home, or model.