Meets all USCG regulations for barge navigation lights. All lights certified by USCG approved laboratory. Operates 4 nights on rechargeable batteries. Uses rechargeable or dry batteries. Extended Lexan® carry handle. Rugged all Lexan® case. Lamp life 3 to 6 years. Shuts off in daylight. Built in screen. Piano hinged case.  With Peep Connector.