Absolutely nothing. I have already spent my limit for the year, and probably beyond. I have my work-a-day light, the EA41, my 'Reach out and touch someone' light, the TM16GT, my EDC lights, a Microstream and an EA11, a TIP CRI for my keychain, and my emergency area light, the LA10 CRI. Plus other odds and ends like my G2, 6P, and Seraph 6, my BLF 348, and a few others. I believe I am ready for the apocalypse, or at least as ready as I am ever going to be. I might invest in a higher output solar cell panel, but it isn't like those are included in these sales.