Features: *Auto night sensor, detecting light brightness and ON/OFF automatically. *Wireless solar warning lights, no wiring needed. Compact design, easy installation. No need maintenance. *Solar powered outdoor warning light, no electricity required, energy-saving, environmentally friendly. *Super IP65 waterproof and easy to install on fence, guardrail, bridge and needed places. Wear-resistant with long lifespan. *Great useful warning light for traffic barrier,night driving,construction enclosure,garden architecture,urban lighting,etc. Avoid accidents. Specifications: Solar panel: 2V 100mA Batteries: 1.2V*400mA LED quantity: 2pcs Emitted color: Yellow, Red optional Flicker frequency: 50 times/min Visual distance: 500-1000 meters Switch: OFF/AUTO Waterproof: IP65 Housing material: PC Charging Time:5~8h (depend on illumination intensity) Working time: 50 hours Connection Wire: No need Installation method: Screw fixing Working temperature: -5~60℃ Item Size: 150*40*34mm Package Information: Package Size: Approx. 15.5 * 4.5 * 4cm / 6.1 * 1.8 * 1.6in Package Weight: Approx. 80g / 2.8oz Package List: 1 * Solar Warning Light