Ledlenser - Perfect for flexible use in explosive environments, the Ledlenser EX4 was designed specifically for Ex-Zone 0/20. At a mere 65 g it's easy to forget you've got a full-blown Ledlenser
Ledlenser 880428 EX4 Intrinsically Safe LED Flashlight
LEDLENSER EX4 Intrinsically Safe LED Flashlight 880428 B&H Photo
Linterna LedLenser EX4 - YouTube
Ledlenser 880428 EX4 Intrinsically Safe LED Flashlight