The Defense Advanced Research Projects Agency (DARPA) is hosting a Proposers Day for the Rads to Watts program, which aims to develop technologies for high-power direct energy conversion of nuclear radiation into electricity. The program seeks to identify and develop a range of technologies for high-power direct energy conversion, with a focus on radiovoltaics. The goals of the Proposers Day are to introduce the research community to the program vision and goals, explain the mechanics of a DARPA program, and encourage teaming arrangements among potential organizations. Some key points about this opportunity include: • The Rads to Watts program aims to develop technologies for high-power direct energy conversion of nuclear radiation into electricity. • The program seeks to identify and develop a range of technologies for high-power direct energy conversion, with a focus on radiovoltaics. • The Proposers Day will provide information on the program objectives, mechanics, and teaming opportunities. • Attendees will have the opportunity to give Lightning Talks and participate in sidebars with the Program Manager. • Registration is required for attendance, and advance registration is recommended due to limited capacity.