Abstract: Photoplethysmography (PPG) is a simple method to measure various physiological indices, including heart rate (HR). To prevent motion artifacts, the optimal light wavelength for PPG ...

The Elgato Ring Light is the best light for streaming overall. We put it at the top because it balances features and connectivity with price. It's designed especially for live-game streaming and gives ...

Smart LED light bulbs are one of the easiest ways to get into the IoT space. These smart lighting solutions let you control your home’s illumination from your phone and other connected devices, and in ...

The Hartman Rock Garden, one of Springfield’s most unique attractions, will offer new free docent-led tours in October. The tours will give visitors the chance to tour the more than 250 sculptures ...

Crest 3D Whitestrips with Light Teeth Whitening Kit is on sale for 43% off during October Prime Day 2025. The kit includes 20 strips, an LED light, and uses an enamel-safe formula. This deal is ...

Chris Wedel is a fan of all things tech and gadgets. Living in rural Kansas with his wife and two young boys makes finding ways to stay online tricky — not to mention making my homestead smarter.

Diego is a writer and editor with over six years of experience covering games. He's mainly focused on guides, but he's done reviews, features, news, and everything in between. A fan of all genres, you ...

9月15日，TCL举办主题为“不颠覆不发布”的秋季新品发布会，划时代的SQD-Mini LED耀世登场，实现革命性的技术升级，全球首款采用这一技术的“真机皇”X11L SQD-Mini LED电视以及标杆级RGB-Mini LED电视Q10M Ultra、最值得买的RGB-Mini LED电视Q9M同步亮相。其中，首台搭载SQD ...

Litegear has expanded its product line by adding the Spectrum version to the LiteTile series. The 2 x 8′ LiteTile Spectrum 8 Foldable RGB LED Light Panel Kit introduces the brand’s new Spectrum Ultra ...

【ZOL中关村在线原创技术解析】在当下彩电行业，一场技术变革正悄然上演，RGB-MiniLED成为各大电视厂商竞相挺进的新领域。2025年，海信率先推出全球首款RGB-MiniLED电视，并迅速实现量产，犹如一颗石子投入平静湖面，激起千层浪，三星、索尼等巨头纷纷跟进 ...

Roger is a long-time tech journalist with many site credits including AppleInsider and Android Authority. His specialties include everything from Apple, Android, and Windows devices through to ...

Nothing hits me in the nostalgia quite like the original Metroid Prime. I first played it with my brother on Christmas Day in 2002, huddled in my tiny bedroom at my parents’ house. For the first time ...