The Philips MASTER Actinic BL TL-D Secura family combines multiple benefits in one lamp. These lamps have the perfect spectrum for attracting insects. Also, they have virtually no UV-B output, and so are perfectly safe. Furthermore,they have the special "MASTER" coating to improve the efficiency, initial UV-A output and maintenance of the lamp. And finally, they have a special "Secura" sleeve that keeps all glass and components together in the case of accidental breakage. This eliminates the risk of glass splinters showering down on food preparation areas, for example. And that is why it meets the strict HACCP requirements. What's more, with the lowest mercury content in the industry and being 100% lead-free, combined with their high efficiency, these lamps represent the best choice for the environment.