President Chain Store Corp, the operator of Taiwan’s largest convenience store chain, 7-Eleven, has planned to cooperate with Delta Electronics Inc to sell LED light bulbs to meet the increasing demand for energy-efficient lighting products. Previously, President Chain has partnered with Everlight to sell 8-watt LED bulbs under the Everlight brand, however, this time it would market co-branded 8-watt LED bulbs with Delta Electronics Inc. According to President Chain public relations official Irene Chuang, the new LED light bulbs would hit the sto...