Visual Fault Locator  Specifications: Model VLS-5A Emitter Type LD Wavelength 650±10nm Output Power① >7mW Modulated  Frequency 2Hz Fiber  Type SM and MM Fiber Power Supply 1.5V AAA Battery* 3pcs Operating  Time >10 hours Dimension (mm) 27 (D) * 150 (L) Weight 150g (including batteries)   Note①: Valid at 1550nm,CW,23±3°C, Relative Humidity ≤ 70%, with an FC connector