I've tried both Alternative Energy Store alternatives for CFL lamps, first Steca and then Phocos, both of German descent. And my favorites are the Phocos 5W Warm and the Phocos 15W Cool.

The 5W Warm is a great ambiance light, subtle and gentle (and little consumption).

The 15W Cool is a great reading lamp, an investment on my eyes.

In general, 12 volt low-consumption CFL lamps with standard sockets is the way to go.

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