Hebei Daqi Photoelectricity Technology Co., Ltd., as the creator and leader of Chinese LED bidirectional string light or called Multicoloured LED Christmas String Lights, has firstly developed the first generation LED bidirectional string lights, has successfully produced three series of LED bidirectional string lights and LED unidirectional string lights by integrating first-class domestic research and development strength and breaking through, and obtained many national patents. It is one of the largest manufacturers of LED bidirectional string lights/unidirectional string lights in China. Three series to fully meet different requirements of customers: Piranha tube seriesSurface mount tube seriesStraw hat tube series.. Mass Production: Automation equipment production, assembly line operation, stable and reliable quality; High Reliability: Adopting full plug-in type circuit design, the products have passed the certifications of CQC and ISO9001 Quality Management System;Good Tolerance: Anti-aging, UV resistance, cold resistance, and anticorrosion;Easy Installation: Simple installation, effective reduction of installation cost;Applicable Scope: Used for lighting tunnel and lamppost artistic modeling;Used for large dynamic lighting fresco;Used for floor building contour lights;Used for nightscape decoration of streets, parks, and square trees;Used for advertising plaque decoration and light boxes, and luminous character backlights;Used for home decoration, market showcases, display, etc. Technical Specifications Model NumberOperatingVoltagePower/PointLuminous IntensityIP CodeOperatingTempreatureDQ-B1A-01DC 24VR: 0.04WR: 1000mcdIP65-40°C 55°CY: 0.04WY: 1000mcdG: 0.06WG: 3000mcdW: 0.06WW: 3000mcdB: 0.06WB: 700mcdDQ-B2A-01DC 24VR: 0.08WR: 1000mcdIP65-40°C 55°CY: 0.08WY: 1000mcdG: 0.12WG: 3000mcdW: 0.12WW: 3000mcdB: 0.12WB: 700mcdDQ-B1B-01DC 24VR: 0.04WR: 600mcdIP65-40°C 55°CY: 0.04WY: 600mcdG: 0.06WG: 2000mcdW: 0.06WW: 1700mcdB: 0.06WB: 600mcdDQ-B2B-01DC 24VR: 0.08WR: 600mcdIP65-40°C 55°CY: 0.08WY: 600mcdG: 0.12WG: 2000mcdW: 0.12WW: 1700mcdB: 0.12WB: 600mcdDQ-B1C-01DC 24VR: 0.04WR: 400mcdIP65-40°C 55°CY: 0.04WY: 400mcdG: 0.06WG: 1800mcdW: 0.06WW: 1800mcdB: 0.06WB: 600mcdDQ-B2C-01DC 24VR: 0.08WR: 400mcdIP65-40°C 55°CY: 0.08WY: 400mcdG: 0.12WG: 1800mcdW: 0.12WW: 1800mcdB: 0.12WB: 600mcd