The best choice for solar string lights: There's no need to manually turn the light on or off; it will automatically illuminate at dusk and turn off during the day. Powered by solar energy: You won't need to pay an electricity bill, helping you save money and protect the environment. Water resistance: No need to worry about the lights getting wet during rain, as both the solar panel (IP65) and the bulbs (IP44) are waterproof. Two spare bulbs: To prevent potential damage, we provide two spare bulbs for replacement if needed. 4 lighting modes: Steady on, breathing mode, fast flash, and slow flash. Suitable for selecting your lighting effect. Solar-powered LED string lights are waterproof and perfect for decoration, weddings, decks, patios, pools, parties, backyards, and more. They will add ambiance to any event and beautifully highlight any outdoor or indoor space. Characteristics: Light color: Warm white (2700K) G40 CRI: 80+, Voltage: 3V, String length: 25 feet, Solar panel: 5.5V 3W (25 feet) Power per G40 bulb: 0.5W, Lumens: 50 lumens, Lifespan: 12 months and above (500 charging cycles, which are a full charge and then use). Battery capacity: 25FT: 3.7V 2200mAh 18650 lithium * 2 pieces. Charging method: Solar rechargeable, USB charging: 5V 1A/h. Full charge time: 8 hours, Working time for solid mode: 8 hours, Working time for strobe mode: 12 hours. Operating temperature: -20°C ~ +45°C. Package includes 25FT: 1 × Solar panel, 1 × Ground plug set, 3 × Mounting screw set, 1 × 25 solar-powered LED bulbs + 2 spare bulbs, 1 × User manual.