Class II, Division 1 
Intrinsically Safe Lights

These flashlights can be used in areas where an ignitable concentration of combustable dusts exist under normal operating conditions.

Such dusts in this Instrinsically Safe light classification include, but are not limited to: 
Metal dusts such as aluminum and magnesium. Carbonaceous dusts such as coal, charcoal and coke. Other types of dust such as wood, plastics, flour, starch and chemical dusts.