battery warning lamps with longest life-span

Description

Battery: 2 or 4 "D" Size batteries, 1.5 volts/per battery Viewing Distance: About ***0m (Approx.***0ft.), High optics vision. Lens: High impact polycarbonate lens, Φ**1mm or Φ**5mm in diameter, amber or red ***** with advanced optics for increased visibility Housing & Base: High impact polypropylene w/ UV rays protection to retain color ILLumination: High intensity LED, including circuit with PCB, Brigthness: "Center of lens light intensity: >*0 candela Edge of lens light intensity: 1:3.*9 Max light intensity: *7.1 candela" Operational Specifications: Flash rate *5 times ±*5%/per minute, dual mode: flashing and steady burn; 3 ways switching. Operating Time: Automatic from dawn to dusk. 4 batteries operate for nearly 1 year. (save cost of batteries) Unit Product Weight: 0.9 kilogram wo/ batteries Construction: Univeral mounting systems, **0 degree swivel axis