This guide helps clinics and distributors evaluate phototherapy equipment before buying. It explains how to verify model-specific regulatory records, compare irradiance and coverage at the working distance, check production quality, and agree on service terms. It also distinguishes red and near-infrared LED devices from narrowband UVB equipment.

This guide explains REDDOT LED's phototherapy equipment warranty, repair arrangements, and technical support. It helps clinics, distributors, and private-label brands assess service costs, documentation, optical testing records, and supplier responsibilities before purchasing red and near-infrared LED devices.