The ESAB Sentinel A50 welding helmet features an amber color reflective cover lens and a revolutionary shell design resembling the helmets in the video game Halo. The ADF ranges from shade 5-13 and has a TIG amperage rating of less than 2 amps. The Sentinel also features an external grind mode button for ease of switching from weld to grind mode. An added benefit to the Sentinel helmet is that the front cover lens is replaceable within 10 seconds without removing helmet.