Bulbs Solar Lights Solar Charging Emergency Lights Camping Watertight Outdoor Tents LED Light Bulbs Portable Night Shelters Power Outages Features: Efficiency: The high brightness from advanced technology and the 1200mAh lithium battery provides extended lighting while preventing overload. The basic and watertight E27 screw has an IP65 rating, making it suitable for use on rainy days; the E27 base is also commonly found in most households. Emergency lighting: When power is cut off, these light bulbs will automatically emit bright light in dark environments. Easy to install: Installing these solar-powered LED light bulbs is simple; just twist them into a standard light socket (E27). In seconds, you will have a bright light wherever you need it. Multi-functional design: Perfect for home lighting, travel, outdoor use, emergencies, power outages, hiking, camping, and more. Product Including: 1x solar emergency light bulb.