Perfect for Camping, Backyard Entertaining, Auto ,Power Outage and Emergency. Super-Bright White LED for superior illumination Long-Life LED last for nearly 100,000 hours Built-In Dimmer Switch Convenient Fold-Down Handle for carrying and hanging Two sources of power for your personal choice. DE103 work with 4 alkaline D Batteries（not included） or optional 6V AC Adapter（not included）. DE105 work with storage battery along with 6.8V AC Adapter(included）.