The solar outdoor patio lights can be freely set to 4 brightness level 25%, 50%, 75% and 100%, 6-hours or 8hours timing setting or 10-hours defalt timing, 3 lighting effects, no need to buy another compatible timer and dimmer. These solar string lights can work up to 16-hours after full charging by Sunlight (Dusk to dawn solar string lights, automatically off at dawn and automatically on at dark). A 180° adjustable panel allows you to get the optimum Sun exposure. The USB charge can be complementary when there is no sufficient Sunlight during the day. UL Listed total length 58 ft. with 24 in. bulb spacing, 9 ft. lead wire and 1 ft. tail wire. 48 ft. lighted length with 26(25 plus 1-spare) pieces shatterproof bulbs, Not Connectable. Each socket designed with horizontal and vertical hooks for quick hanging, also the cable ties included for cord regulation and quick installation of this hanging lights for outside patio. 1-Watt per bulb, c7 or e12 candelabra socket base, much lower wattage will save more energy for you, but the lifespan is 10-time to 20-times of the traditional tungsten bulb.