Cosmin3
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Cosmin3 16/10/2018
Pros: 1. A high efficiency in converting light to electricity. At noon in plain sun I got ~120/130 mA. 2. Very good price. Cons: 1. It's difficult to remove the plastic cover without damaging the cells. 2. No reference to its life time, so, from my experience, it would seem it won't last that long...
Portátil Mini 0.7 W 5V 70 * 70mm DIY Solar Charger Painel Solar
US$7.69 US$8.99
1
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Cosmin3 Very useful, thank you. Could you please help me with this one too: When Vin is a 3.7 V 1500/2000 mAh battery (3.2V .. 4.2 V) and Vout is 16.5..17 V and Iout is 25/50 mA, what is the power efficiency? And does the circuit heats up (it needs to function for years a few hours every day)? Thank you in advance.

farshidjh 17/09/2018
Tested all 5 I got except one that has a slightly bigger font for the silkscreen markings the rest fails: 12V -> 15V fails even at 500mA 5V -> 12V fails at 200mA The one with the bigger font size heats up excessively at 15V@1.5A. Only buy if you are thinking of 100ma or so I suggest.
5 PCS DC Boost Converter 2A Módulo de Alimentação 2 V-24 V Para 5 V-28 V Regulador Ajustável
US$9.19 US$14.39
2
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