Now you can use insect electrocutors near processing lines without the danger of broken glass getting into product or injuring personnel. Shat-R-Shield has developed another first in fluorescent bulbsafety with a specially formulated coating for black lights. This unique new coating allows the critical ultraviolet wavelengths to penetrate and attract flying insects while special UV stabilizers prevent degradation. In case of accidental breakage, the coating will contain all the glass, phosphors and mercury. No need to remove your insect electrocutor while replacing bulbs. Each bulb has a date label to monitor routine re-bulbing. USDA accepted. Meets FDA and OSHA standards and are NSF certified.