Feature:1. With remote control, the lighting mode can be set by remote control, which is very convenient.2. Can be used for 100LED solar string lights, solar copper wire string lights, solar studs and other lamps.3. Made of high quality fiberglass material, fine workmanship and durable to use.4. Comes with a power switch and a lighting mode switch, easy to operate.5. It can be connected to 3.7V lithium battery and solar panel below 5‑6V/6W.How to Use:Mode Switch Introduction:1: 2‑8 function cycle2: Star flash3: Pair flash4: One‑way gradually lighter and darker5: Single flash 4 times, pair flash 4 times6: All gradually lighter and darker7: Single flash 4 times8: All brightSpecification:Item Type: Solar Lamp String Circuit BoardMaterial: ABS+FiberglassColor: As shown in the pictureWeight: Approx. 25g / 0.9ozUse Lithium Battery: 3.7 V lithium batteryApplication of Solar Panels: 5-6V/<6WLED: <3VRemote control battery: CR2025 button battery 150mah (included)Application: The solar string light circuit board can be used for the control of 100LED or 200LED solar string lights, solar copper wire string lights, solar road studs and other lamps. Package List:1 x Circuit Board1 x Instruction Manual1 x Remote Control