Princeton Tec Eos II MPLS BK Headlamp

Intrinsic Safety:

• When a flashlight is referred to as “intrinsically safe,” this means a couple of things. First of all, it means that the flashlight is designed not to produce sparks, or at least not to produce sparks that have enough energy to ignite the surrounding material.
• Intrinsic safety also protects against abnormally high temperatures of small components inside the flashlight.  If there was an internal short inside the light, the temperature of that component could rise well above the normal operating temperature. 
• In intrinsically safe flashlights, safety measures are put in place to ensure that no one component of the flashlight can reach a temperature that would ignite the hazardous materials in the surrounding atmosphere.
• What is the difference between a UL safety rated flashlight and a flashlight deemed intrinsically safe?  Many people use the term “intrinsically safe” in a general way to mean any flashlight that has safety approvals. 
• The reality is that a flashlight is only intrinsically safe for the specific environment it was tested for.  For example, a Class I, Div 1 flashlight is intrinsically safe for a Class I, Div 1 environment, but it is not necessarily intrinsically safe for a Class II, Div 1 environment.