Perfect Replacement Parts for Garden Lights: This replacement solar light with LED bulbs is approximately 8 cm in diameter and fits most garden lights. When installing, simply remove the old compartment battery and insert the replacement solar light on top to enjoy beautiful lighting effects. Automatic solar lighting: Replace solar lights with LED bulbs and use large solar panels that absorb sunlight during the day and turn on automatically at dusk. When fully charged, the unit provides continuous illumination for 6 to 12 hours. IP65 Waterproof: The replacement solar light with LED bulb is designed to be waterproof and performs well in rainy or stormy conditions. (Note: Stormy weather may result in reduced lighting due to limited sunlight exposure.) Easy to Install and Use: Installation is simple—just plug in the solar replacement lamp with LED bulb. The LED solar panel features a shade and an on/off switch, allowing you to turn it off when not in use to conserve energy.