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The annually modulating $\sim$ keV scintillations observed in the DAMA/NaIand DAMA/Libra experiments might be due to dark matter - electron scattering.Such an explanation is now favoured given the stringent constraints on nuclearrecoil rates obtained by LUX, SuperCDMS and other experiments. We suggest thatmulti-component dark matter models featuring light dark matter particles ofmass $\sim$ MeV can potentially explain the data. A specific example,kinetically mixed mirror dark matter, is shown to have the right broadproperties to consistently explain the experiments via dark matter - electronscattering. If this is the explanation of the annual modulation signal found inthe DAMA experiments then a sidereal diurnal modulation signal is alsoanticipated. We point out that the data from the DAMA experiments show adiurnal variation at around 2.3$\sigma$ C.L. with phase consistent with thatexpected. This electron scattering interpretation of the DAMA experiments canpotentially be probed in large xenon experiments (LUX, XENON1T,...), as well asin low threshold experiments (CoGeNT, CDEX, C4, ...) by searching for annuallyand diurnally modulated electron recoils.

Can dark matter - electron scattering explain the DAMA annual modulation signal?