I made a short video of the LTC3108 energy harvesting board with a solar cell. The test is done indoors, it was completely dark outside. Light source is a single 23W CFL bulb, around meter away. The breakout board has 1:20 transformer ratio and 470uF VOUT capacitor. The supercap was pretty charged already, I included it to show how it really helps recover from a pulse load.
Needless to say that at daylight (not direct sunlight, shadowy indoor corner), this is a monster; recovery from a pulse load is within 5 seconds.
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