OxyLED 2 Pack Premium Wine Cork Bottle Night Lights, USB Rechargeable, White ULTRA BRIGHT: Comes with a single bright white LED, it reaches up to 12LM / 1800 MCD EASY INSTALLATION AND OPERATION: Just twist the light on, then insert it into an empty bottle FAST RECHARGING: A full recharging only takes 20 minutes via any standard USB port but can be lit on more than 3 hours! COMPATIBILITY: Fits for most standard wine bottles with opening diameter 1/2  1 inch. RELIABLE AND FRIENDLY CUSTOMER SERVICE: Ready to respond within 24 hours, 30-day money back guarantee, 12 month replacement warranty and lifetime support guarantee.