Rechargeable AAA battery is included and is easy to replace when its useful life is gone in normally 36 months. Use Nickel Metal Hydride rechargeable 1.2v 600 mAh or higher mAH to replace. Use for landscape lighting, house numbers, walkways, mailboxes. The solar light needs to be in direct sunlight for 8 hours daily to recharge. Automatically on at dusk off at dawn. Unit is weather poof. It is not water proof. The metal will rust if by a wet location, or use water resistant paint on them before mounting. Use the nature of solar power be green, Led bulb lasts over 100,000 hours. These HomeBrite Solar Wunder Light Deck-Mount Outdoor Black Plastic Solar Lights feature 3 super-bright white LED lights that charge through solar power by day and turn on automatically at night to offer up to 8 hours of solar-powered illumination. These lights are ideal for illuminating decks, stairways, handrails, porches and more.

• Durable plastic housing is ideal for outdoor installation Clear lens helps create bright illumination
• Black coloring will blend in with outdoor decors
• Mount on decks, handrails, stairways, trims, porches and more for outdoor illumination Weather-resistant construction to withstand outdoor elements
• 3 super-bright white LED bulbs charge through solar power by day and turn on automatically at night
• Crystalline solar cell and advanced circuitry provide up to 8 hours of solar-powered illumination Powered by 1 rechargeable AAA NiMH battery for each light, that's included for easy setup (this shows 6 lights but only 1 is included.)

Durable plastic housing is ideal for outdoor installation Clear lens helps create bright illuminationimported