Hydrogen and deuterium lamps for UV vary in the gases that are utilized in the discharge.. Deuterium lamps also generate a higher intensity radiation compared to hydrogen lamps.

Deuteriums emision spectrum either is like hydrogen http://chemed.chem.purdue.edu/genchem/topicreview/bp/ch6/bohr.html or like http://en.wikipedia.org/wiki/Image:Deuterium_lamp_1.png

Deuterium is an example of natural, non-radioactive isotope; deuterium is the isotope of hydrogen with 1 proton and 1 neutron.

Deuterium is a natural isotope of hydrogen with the mass 2; deuterium has 1 proton, 1 neutron and 1 electron. The chemical symbol is D.