Osram Licht AG’s supervisory and managing boards accepted a 3.4 billion euro ($3.8 billion) takeover bid from Bain Capital and Carlyle Group LP, ending the German lighting company’s relatively brief and at times contentious period as a standalone company. Bain and Carlyle are offering 35 euros a share, 21% more than the stock’s close on Tuesday, amid reports about the latest offer. The price is still 15% lower than its peak this year in February. They’ve put a minimum acceptance level of 70% on the deal, excluding shares owned by Osram, and the acceptance period will run until early September.