Tag: winter

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Always working solar lamp – Part 3: creating a mutant

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Intro A while ago I set out to build a solar lamp that can work all the time, especially in the dark winter months. After a while I realized that there is already some version of it in my home. So now it’s time for part 3 SOLVINDEN skeleton, new insides Step 1 – beef up the solar panels: 2 pieces of 6V 133mA each Step 2 – assemble the led head Step 3 –… Continue reading

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Always working solar lamp – Part 2: right under my nose

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Intro A while ago I set out to build a solar lamp that can work all the time, especially in the dark winter months. Using real solar production data and a simple excel model, I was able to figure out combinations of battery and solar cells that would be able to power the LED in a SOLVINDEN lamp through the dark winter months. But in my laziness, i never ended up building it. Until I… Continue reading