Delta offers some of the most energy efficient power products in the industry, including switching power supplies with efficiency over 90%, telecom power with up to 98%, and PV inverters with up to 98.8% efficiency. They have also developed the worldâs first server power supply certified as 80 Plus Titanium. Headquartered in Taiwan, they regularly invest 6% to 7% of their annual sales revenues in R&D and have worldwide R&D facilities in China, Europe, Japan, Singapore, Thailand, and the U.S.
