"True" full-spectrum fluorescent lamp with daylight-like UVA and UVB percentage. Brilliant contrast, my father was with more than 80 years suddenly read without glasses, the daily newspaper. Narva produced in my opinion the best BIO-lights, when comparing the light spectra with those of other manufacturers. Ideal for people who get little daylight (especially in winter) or behind window glass with UV-filtering (low-e glazing) reside. The tube should be used in open luminaires, as lampshades polyacrylic block UV radiation.
