... light, voice, temperature, PIR or timing. Specifications:LED flashing module with colorful LED light, widely applied for wearable, souvenir, decoration ... , wax-free, heatless, non-toxic, 4. USB input, with LED flash5. Can be used for bars, anniversary, wedding, ... We are a manufacturer of sound modules, recordable modules, flashing modules, etc. We offer responsible and professional service, quality ...