Hardwired Emergency Exit Light Fixtures For Businesses, Two, Pack Of 4. Product Features ? Battery Backup: Comply with UL 924 Emergency Lighting and Exit Sign Regulations; built-in 3.6V 1000mAh rechargeable battery, more than 90mins continuous lighting for emergency after power failure, longer illumination, more reliable ? Easy Installation: Surface mount via back plate, all the mounting hardware and accessories included in package, save the time and trouble of purchasing extra mounting parts ? Ultra Brightness: With 12 high-grade LED chips per head, dual-head design brings high brightness for emergency, two voltage levels available, AC120V for general household lighting and AC277V for commercial or industrial lighting ? Wide Applications: Keeps off when the power is connecting while lights up when power failure, suitable for basements, auditoriums, restaurants, shopping malls, super markets, schools, etc ? Quality Assurance: UL-listed for safe operation and first-class quality; impact resistance, thermoplastic housing; come with a 2-year warranty, extra protection for you Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!