Can I hook up the solar floodlight to a DC adapter? It takes too long to charge from the solar panel. Calvin Chiu December 21, 2023 05:00 Updated No, we do not advise plugging any third-party cables/jacks into the lighting unit. Doing so will void the warranty. Related articles What is the voltage of this panel? I would like to add a larger panel. The solar floodlight came on last night for a quick second then went off and now it won’t come back on. Comments 0 comments Article is closed for comments.