Blue Demon True View Auto Darkening Welding Filter

Blue Demon True View 3290 is an auto darkening variable shade welding helmet replacement filter.  The shade is variable between shade 5 and 13.  The light shade is 2.5.  The exact dimensions are 108 x 51 x 8.1mm.  

Features:

• Fits most welding hoods with a 2 x 4 1/4 cartridge or lens.
• Solar power with (2) CR1025 Li Batteries
• Two independent wide range photo sensors.
• UV/IR protection up to 16 DIN at all times.
• Adjustable shade range 5-13.
• Adjustable sensitivity
• Adjustable delay