Professional eye care begins with the circuitry. The CLED-0251 round-head articulated desk lamp delivers 1850 lux (40cm) with CRI ≥90 for true-to-life colour; the CLED-3905 and CLED-3907 feature a flagship 99Ra solution with CRI ≥99 — nearly natural light — plus stepless 3000–5700K colour temperature, driven by a precision constant-current LED driver board. All models run on safe 24V low-voltage power with touch dimming — the eye-friendly choice for work and study.