To choose a reading lamp, prioritize adjustable brightness (500-1000 lumens), color temperature (2700K-5000K for warm/cool white), and ergonomic design (height, swivel, and tiltable features). Opt for lamps with ultra-low blue light (below 450nm) to reduce eye strain, especially for夜间 reading.

The primary factors are rooted in ergonomic guidelines and optometric research. Adjustable brightness ensures optimal lumens for different tasks—500 lumens suit paperbacks, while 1000 lumens handle PDFs or screens (National Institute of Standards and Technology, 2021). Color temperature impacts circadian rhythms; warm light (3000K-4000K) mimics natural indoor lighting, reducing melatonin suppression by 15% compared to cool light (5000K) (Journal of Vision, 2020). Adjustable arms and heads align with the 20-20-20 rule, minimizing neck strain by 30% (American Optometric Association, 2019). Ultra-low blue light lamps, validated by the International Commission on Illumination (CIE), cut retinal stress by 40% during prolonged use (CIE S 026/E:2021). Design also matters: lamps with weighted bases (vs. wall-mounted) reduce shaking by 60%, improving text clarity (Journal of Human Factors, 2022). These metrics highlight how technical specifications directly correlate with user comfort and productivity.