The draper expert whvs-bk is an auto-darkening welding helmet designed for professional welders and fabricators requiring reliable eye protection across multiple welding processes. This multi-purpose helmet automatically activates when the arc is struck, rapidly adjusting to the appropriate shade level with an impressive switching time of just 1 10,000 of a second. The helmet offers comprehensive shade coverage including 4, 5-9 and 9-13, making it suitable for tig, mig and arc welding, as well as plasma cutting and grinding operations. Four arc sensors work in conjunction with adjustable sensitivity controls via a rotary dial, whilst the stepless dark-to-light delay function allows welders to fine-tune performance for different applications. The 100 x 67mm viewing area provides good visibility of the weld zone without compromising protection. Powered by a hybrid system combining solar cell technology with a replaceable 600mah lithium-ion battery, the helmet delivers fast switching and low amp sensitivity for precise control. At just 522g, the lightweight design includes a comfortable, adjustable headband with knob adjustment for an optimal fit during extended welding sessions. The helmet operates reliably in temperatures from -5 c to 55 c, suitable for workshop and site environments. Features and benefits: auto switches on striking arc shade coverage includes 4, 5-9 and 9-13 solar powered with replaceable lithium-ion battery variable sensitivity and dark to light delay st...