Crompton 8.5W Emergency LED Bulb provides bright cool daylight light at 6500K for clear visibility in any setting. It features a built-in rechargeable battery offering up to 4 hours of backup during power outages. The inverter technology ensures automatic switching to emergency mode without flicker or delay. Equipped with BMS technology, the bulb manages battery performance for enhanced safety and longevity. Overcharging protection safeguards the battery against damage, extending its life. Ideal for home use, this bulb combines energy efficiency with dependable emergency lighting support.