TUVN UVC lamps have their main radiation at a wavelength of 253.7 nm. TUVN lamps consist of a special glass which reduces ozone generation. The lamps are originally manufactured by our trade partner Philips and are then converted from both side bi-pin G5/13 to single side 4-pin-base and a cap in our factory. The advantage is a single sided electrical connection which is essential in certain applications. Lamps with 15 mm diameter can be manufactured in two different lengths. The short bases reduce the length by 25 mm.