Feature 13 GEAR POWER: The light power of this visual fault locator can be adjusted according to actual testing needs, with 3 gear cycle switching, energy saving. 2CONCEALED DESIGN: Adopt a concealed laser head design, which can be opened when the VFL tester turned on, and retracted when turned off, ensuring longer service life. 3REPLACEABLE CERAMIC CORE: The ceramic core adopts a replaceable design, effectively extending the service life of this fiber red light pen. 4UNIVERSAL INTERFACE: This fiber optic source tester adopts a 2.5mm universal interface, supports SC FC ST fiber optic interfaces, to meet different testing needs. 5EASY TO USE: This fiber optic cable tester is compact and portable, easy to carry around, with ergonomic body design, more comfortable to hold.Item Type: Fiber Optic Visual Fault LocatorMaterial: ABSOutput Distance: 15KMWorking Current: 150mABattery Life: >3.5hCharging Time: 3hCharging Current: 300mACharging Voltage: 5VStatic Current: 15uAGear Output: 3 Adjustable GearsOutput Wavelength: 650nmInterface Type: 2.5mm Universal AdapterWorking Temperature: -20 to +60 (without condensation)Storage Temperature: -40 to +85Power Type: Rechargeable Lithium Battery 400mAh x 1 (Built in) .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Fiber Optic Visual Fault Locator1 x Ceramic Sleeve1 x Data Cable1 x Instructions