Brightness Emergency Rechargeable Bulb Stay prepared for any lighting need with this LED rechargeable light bulb, designed for reliability and performance in both everyday use and emergency situations. **Builtin Capacity Battery**: Equipped with a 2400mAh rechargeable battery, this bulb can be quickly charged via USB for convenient use anywhere. It works like a standard LED bulb under normal conditions, storing power for later use, and delivers up to 4 hours of illumination during power outages or outdoor activities. ** Brightness and Energy Efficiency**: Powered by a sixthgeneration LED chip, this bulb produces cool white light comparable to a 150W incandescent bulb while using far less energy. It delivers a stable and consistent light output, increases energy efficiency by 20%, and saves up to 80% on electricity costs. **Adjustable Lighting Modes**: Choose from five lighting options—, medium, low, fast strobe, and low strobe—so you can brightness and effect to suit your environment. for a variety of situations such as outdoor gatherings, backyard barbecues, or as emergency lighting during unexpected blackouts. **Portable and Versatile Design**: Includes a builtin hanging hook for easy placement in any setting. Hang it from a rope, tree branch, tent frame, or other structures to provide constant and even illumination in a wide range of scenarios. **Practical Applications** 1. Reliable light source during household power failures, keeping rooms illuminated and safe. 2. Handy for camping, hiking, or outdoor events where fixed lighting is unavailable. 3. Useful for workshops, garages, or storage areas with limited access to power outlets. This LED rechargeable emergency bulb combines convenience, durability, and versatility, making it an essential tool for both indoor and outdoor use.