Shenzhen Sinomania Technology Co., ltd is a company sepciallized indeveloping, producing and selling LED illumintaion products, involving in other fields as illumination electronics, car eclectronics and so on. Sinomania LED Tube enjoy the advantages as long-life, energy-saving, and environmental-protection. Whatâ??s more, comapared with those LED Tube on the market, they have edges as follows: 1. specially-designed. optical principle is used to achieve the effect that the brightness is raised without adding leds, either adding its consumption watt. 2. we use the most stable and mature led chips. 3. Double-coloured Janpan imported PC tube used, which guarantees the high quality of the products. Shenzhen Sinomania Technology Co., ltd gains greater market space in the illumintation area, with its SINOMANIA LED Tube popular in more than 50 countries and regions as Europe, the United States, Japan, South Korea, Southeast Asia, South America and so on. â??SINOMANIAâ?? LED Tube focus mainly on T8, including the standard Models as 6W, 8W, 12W, 15W, and 18W; also some non-standard models as 20W, 24W, 28W, and 32W. we can custome-make LED tube with different lengths and watts according to the customersâ??requirements on the basis of theory practiality. According to the form of the power supply, â??SINOMANIAâ?? LED Tube can be divided to the internal power supply type and external power supply type. The former type is suitable for inside direct-replace places. The condition should be gentle. Say the input voltage is stable, the condition temperature is proper, no frequent power on or power off, these good conditions are suitable for the internal type. While the external type can stand relatively harder conditions as higher (lower) terperature, flexile voltage and frequent power on and power off. The external power supply is outside, enough space allows it withstand more, thus assures it work well in rough surroundings.