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The full 2026 buying guide: every device format, the specifications that matter, price bands, questions to ask a seller, and a decision path from budget to shortlist.
How to read a red light device spec sheet line by line: wavelengths, LED count, irradiance, timers, battery, materials, certifications, warranty and the gaps that matter.
Three formats compared on coverage, posture, portability, sharing, price and the trade-off each one makes. Includes a straight comparison table and who should buy which.
A decision framework, not a ranking: four questions that narrow fourteen device types to one or two, a routing table by body area, and where each Vyalight device lands.
A cap is hands-free and shaped to the head; a panel or lamp is versatile but needs positioning. Compared on convenience, coverage, cost per area and household sharing.
Coverage, LED density, fit, weight, session control and battery: the checks that separate a usable red light cap from an uncomfortable one, with the Vyalight cap specified in full.
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