... ,environmental protection,green product 3.Lifespan:3years Solar Energy Fishnet lamp1.Using solar rechargeable battery, never needs battery replacement.2.Charging in ... (Can make as per your requirement).4.use in warning of nignt work, mariculture and road and bridge repair such as ... sea, lake and river. also can use in making signal of vehicle failure in night.5. good sealed and waterproof performance.