These beam angle tube lights are specifically for ceilings and over counters. These lights are best for public bathrooms, kitchens, offices, shops, showrooms, warehouses,workshops, hospitals and other intermittantly uninhabited areas. They are exclusively for specialised germicidal applications in general decontamination applications
These tube lights radiate light at 254nm which is harmful to the human eye and skin. They should not be on when people are in direct line of sight. They should not be used in closed glass covered fittings as this shields the effective germicidal wavelength.

UVC Light T8 Tube