New Custom PL 13 Compact Mercury Vapor Light Tube.

The special grade quartz tubing used transmits more ultraviolet than commercial quartz tubing used in other lamps. Technologically superior shape to the common "U" shaped tubes, for a more even distribution of the ionized mercury plasma. This gives double the arc length of typical straight lamp. Ultraviolet output 56.0 μW/cm2.

Each: $39.95

Available in mid-wave 312 nm, and longwave 365 nm.