T6 is the Lowest Temperature Rating - our unit has a surface temperature of 85 deg C or less. So it can be used in explosive atmospheres that can ignite if any surface temperature is over 85 deg C up to 100 deg C.

Peripheral lighting increases safety and accuracy in Chemical Plants, HazMat, Marine Repair and other Hazardous Areas.

Most standard flashlights or headlamps that contain an incandescent bulb, can only be rated for T3 at best.

Surface Temperature Classifications in North America

Temperature ( ° Farenheit)	Temperature (° Celsius)	Classification
842	450	T1
572	300	T2
536	280	T2 - A
500	260	T2 - B
446	230	T2 - C
419	215	T2 - D
392	200	T3
356	180	T3 - A
329	165	T3 - B
320	160	T3 - C
275	135	T4
248	120	T4 - A
212	100	T5
185	85	T6

Each gas is associated with a temperature class based on its ignition temperature.

The list below covers the different gases from high to low temp.

High Surface Temperatures:
T1 group	City gas, Cresol, Benzene, Methane, Propane, Toluene, Xylene - OK for incandescent bulbs
T2 group	Acetalacetone, Acetychloride, Butane, Butyl acetate, Cyclopentane, Ethyl acetate, Ethyl formate, Propyl acetate
T3 group	Acetylene, Bromobutane, Ethyl mercaptan, Diesel fuel, Aircraft fuel, Heating oils, n-Hexane, Kerosene, Naphtha, Nitroethane, Nitromethane, Octane, Petroleum (including gasoline), Sulphurous hydrogen (T3 is the last group that is OK for incandescent bulbs)

Below is what the FoxFury Signature Intrinsic models can operate in that other incandescent bulb headlamps can not.

T4 group - Acetaldehyde, Ethylether, Trimethylamine, Isopropylnitrate, Butyl ether, Ethyl ether, Ethyl methyl ether, Methyl ether

T5 group - Carbon disulphide

T6 group - Ethyl nitrate