What the hell is a lumen and why do I need it? I’m going back to candlelight. #lights #lightbulb #led #igoogledalumeniknowwhatitisnow

How a Tube Light Glows Under Power Lines #physics

How Fast Is the Universe? 🌌⚡ | #space #universe #infinity

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The Light Bulbs You Need to Get Rid of IMMEDIATELY (New Research). The light bulb above your head right now may be quietly STARVING every cell in your body. Scientists just gave it a name: 21st century SCURVY. In less than one generation we deleted 95% of the natural light spectrum from human life, and almost nobody noticed. Press your finger over your phone's flashlight and you'll see a deep red glow. That's near-infrared light passing straight through your hand - the exact wavelength band that

How to Wire a Two-Way Switch with a Bulb Circuit Diagram | #shorts #electrician

That expensive kitchen pendant lighting deserves a few questions before it deserves your money. 👀 I love a beautiful fixture. But when I’m helping someone choose kitchen lighting, I want to know how it’s going to work when they’re cooking, entertaining and winding down at night. Here are three questions worth saving before you shop: 1. How low does it actually dim? “Dimmable” doesn’t tell you the whole story. Ask for the fixture’s dimming range and the manufacturer’s compatible dimmer list. If