The Ledlenser P4 is an aluminium pen light for inspection work, reading documents and checking small details. A clip holds it in a shirt pocket, and Ledlenser's Advanced Focus System lets you switch from a broad close-up flood to a focused spot for more reach. It has three brightness levels with up to 180 lumens and a beam distance of up to 90 m, and is switched with an end cap button. It runs on two AAA alkaline batteries, giving up to 5 hours on power and up to 23 hours on low, and can also use AAA NiMH rechargeable cells. The housing is 142 mm long with a 15 mm head and weighs about 60 g with batteries; the aluminium parts use 75 % recycled material. It is rated IP54 against dust and splashes. Ledlenser offers a 7-year warranty when the product is registered.