RRP 37.95 - (Co-branding prices available upon request) Ledlenser K4R Keychain Light. POWERFUL AND EASILY RECHARGEABLE KEYCHAIN LIGHT ALWAYS READY WHEN NEEDED. . The Ledlenser K4R is an ultra-compact yet powerful light made from brushed aluminium housing with carabiner that delivers up to 120 lumens that can be quickly and easily recharged via the simple fold out USB-A interface. ENDLESS BENEFITS: Foldout USB-A: Reliable charging that is quick and easy to use; no cables required. Always Within Reach: Carabiner let`s you easily attach to keychain, backpack or purse. Transport Lock: Lock protects against unintentional switching on. Charge Level Indicator: Always know how much battery life is available. LED Configuration 1 x POWER LED. Luminosity1 MAX 120 lm. Battery Duration1 MAX 3.5 h