Together with partner groups, we submitted joint comments to the Department of Energy (DOE) on it proposed energy efficiency standard for general service lamps (i.e. lightbulbs). Our comments applaud DOE for using the social cost of greenhouse gases (SC-GHGs) in analyzing the proposed rule, but encourage the agency to expand upon its rationale for adopting a global damages valuation and for the range of discount rates it applies to climate effects. We further recommend that DOE disclose the SC-GHG estimates that it applies after 2050.