When using electrically illuminated surface magazines, what type of lights should be utilized?

When using electrically illuminated surface magazines, vapor-proof type lights are preferred due to their safety features and design. These lights are specifically constructed to prevent the ignition of flammable gases or dusts that may be present in the environment where explosives and other hazardous materials are stored. The vapor-proof design includes sealed enclosures that protect electrical components from moisture and contaminants, ensuring safe operation under potentially hazardous conditions.

In contrast, standard incandescent bulbs, fluorescent lights, and halogen lights do not provide the same level of protection against igniting flammable materials. Incandescent bulbs can produce a significant amount of heat and light that may not be suitable for environments where combustible materials are stored. Fluorescent lights can also have components that could potentially create sparks. Halogen lights, while bright, can get extremely hot and are not designed for safety in explosive or flammable environments. Hence, the use of vapor-proof type lights is essential in enhancing safety and compliance with regulations for the storage of hazardous materials in surface magazines.