MI ECL FIXE LDU F1 A, Billumination mineThe mine has one fuze well and no power source. The MI ECL FIXE LDU F1 A and the MI ECL FIXE LDU F1 B, are both long duration illumination mines used to provide a visual alarm if invading troops enter a protected area. The two mines are essentially the same, with the F1 B version having an additional membrane between the mine cap and the pyrotechnic compound. Both mines are normally functioned by a tripwire fuze. A spring at the bottom of the mine keeps the top of the burning compound above the upper edge of the mine to provide for a better, more consistent light output. The mines will burn for 6 minutes and produce 50,000 candles of light.Diameter: 75mm Length: 385mm Weight: 2.5kg Range: 20m Explosive/filler type: Pyrotechnic CompositionFrance