Browse by device
Device light categories
Start with the device that has the light. Then narrow by color, pattern, brand, or warning type.
Router & Modem Lights
Decode blinking, flashing, red, orange, green, blue, and white lights on routers, modems, mesh systems, and Wi-Fi extenders.
11 starter guidesPrinter Lights
Understand printer warning lights, Wi-Fi lights, paper lights, ink lights, toner lights, and blinking status LEDs.
6 starter guidesSmoke Alarm Lights
Learn what blinking red, green, yellow, and other smoke alarm lights usually mean and when to take action.
3 starter guidesCarbon Monoxide Detector Lights
Safety-first explanations for red, green, yellow, end-of-life, and alert lights on CO detectors.
4 starter guidesAppliance Lights
Troubleshoot blinking and warning lights on washers, dryers, dishwashers, refrigerators, ovens, and other home appliances.
9 starter guidesCar Dashboard Lights
Plain-English explanations for common car dashboard warning lights and what to check first.
4 starter guidesBattery Charger Lights
Decode red, green, yellow, flashing, and solid lights on battery chargers, power banks, and tool chargers.
7 starter guidesSmart Home Lights
Find out what lights mean on smart plugs, smart bulbs, thermostats, doorbells, hubs, and connected devices.
7 starter guidesSecurity Camera Lights
Understand red, blue, green, white, and flashing status lights on security cameras and video doorbells.
5 starter guidesGame Console Lights
Decode blinking and solid lights on PlayStation, Xbox, Nintendo Switch, controllers, docks, and gaming devices.
6 starter guidesTV & Streaming Device Lights
Troubleshoot blinking standby lights, remote lights, and status LEDs on TVs, Roku, Fire TV, Apple TV, and more.
5 starter guidesComputer & Laptop Lights
Understand charging lights, power lights, Caps Lock blink codes, battery lights, and desktop LED patterns.
3 starter guidesPower Tool Lights
Decode charger lights and battery indicator lights on drills, power tools, and rechargeable tool batteries.
2 starter guidesMedical Device Lights
General guidance for indicator lights on CPAP machines, thermometers, monitors, and other home medical devices.