Thank you for viewing! Set of 2! Peace of mind during power outages! Disaster-preparedness! Can be used as a regular LED light bulb! ★ Features: Built-in battery automatically relights during a power outage! (When the light fixture switch is ON during a power outage) ★ Uses: Can be used as a lantern by touching the base or using the included switch hook. ★ Daylight color (TAL-690-2) ★ Set includes: Switch hook ★ Rated power consumption: (W) 6.2 ★ Luminous flux (Lm): 690 (normal) / 220 (during power outage) ★ Function: LED light ★ Energy consumption efficiency (Lm/W): 111 ★ Battery capacity (mAh): 2000 ★ Socket: E26 ★ LED lifespan (hours): Approximately 40,000 ★ Beam angle (°): 120 This LED light bulb automatically lights up during a power outage and provides approximately 4 hours of light. Thank you for your consideration.