Light quantity
Use lumens for output claims and lux for measured light on a surface.
Specifications translated into decisions
Lighting Basics
Learn lumens, lux, watts, Kelvin, CRI, RGB, RGBIC, diffusion, glare, sensors, protocols, power, IP ratings, and certification claims.
Decision framework
What changes the answer
Use these factors before comparing finishes, effects, or retailer listings.
Light appearance
Kelvin, tint, CRI, white channel, and surfaces work together.
Control
Dimming, sensor, app, automation, and physical override need separate checks.
Safety language
Record claim, verification status, source, model, and date.
Permanent research
Start with the core guides
How Bright Should a Night Light Be? Room-by-Room Guide
A usable night light is usually the lowest output that reveals the route or task without putting a bright source directly in your sightline.
Open guideRGB vs RGBIC LED Strips: What Is the Difference?
RGB strips typically show one selected color across a controlled run; RGBIC strips can address segments for multiple colors and moving effects, often with more app dependence and cutting limits.
Open comparisonWhat Color Temperature Is Best for Ambient Lighting?
For most evening ambient layers, 2200K–3000K is a practical exploration range. Match the room’s materials, existing lights, activity, and desired contrast rather than choosing Kelvin in isolation.
Open guideBefore a product shortlist
Verification checklist
- Verify the exact model, power requirements, intended location, warnings, and current seller.
- Treat certification as claimed until the exact product record is matched with the issuing body.
- Search the CPSC recall database and record the date; a no-match result is not a safety guarantee.
- Stop use if the product becomes unusually hot, damaged, discolored, loose, or electrically unstable.