The rechargeable i4R penlight convinces through its lighting performance with a runtime of up to 18 hours and easily fits into any pocket due to its size. The patented Advanced Focus System allows for stepless and precise focusing of the beam for work in any dark environment and the I4R can also be used with standard disposable batteries if charging isn't available.

With a CRI rating of more than 90, the neutral white light is ideal for a faithful rendering of colors and enhanced perception of contrasts. In addition, eye fatigue, due to working under artificial light for several hours at a time, is reduced.