TRELC Multi-functional Waterproof Silicone Solar Lantern and Storage Bottle with USB Cable, Rechargeable LED Lights Lantern 1. Easy operation: Turn on the lamp, LED light will be on when you blow to lamp-chimney; LED light will be off when you blow to lamp-chimney again. Blowing Control, Built-in battery. 2. The light can be adjusted dim/storng and it will as familiar as candle when dim light. Perfect for living room, hall, office, store, hotel, etc. 3. Built in High-capacity rechargeable lithium battery, USB charging connector, safety, energy saving, convenient. 4. Supre light quality for eye-protection: uniform and soft light effect, anti-dazzle, relieve eye fatigue. Energy saving, longer life. 5. Portable folding design, stylish and compact, convenient for travelling or camping.