Best in class switching speeds of 1/40,000 sec maximize comfort and decrease eye fatigue Easy-to-use lift mechanism reveals a 46 sq. inch clear face shield for grinding operations ADF filter scores a perfect 1/1/1/1 optical clarity rating Engineered with the latest True Color technology to deliver a crystal-clear view of the weld 4 arc sensors provide superior coverage even when welding out of position Super lightweight design is ergonomically balanced to reduce stress and fatigue 9.65 sq. inch viewing area provides maximum peripheral vision Powered by solar technology and two CR2032 replacement batteries Meets or exceeds ANSI Z87.1, CAN/CSA Z94.3 and is CE certified