Knowledge Centre
Buying guides written from our own specifications. Every figure in these articles comes from a product we manufacture.
How to Size a Solar Home System
Panel watts, battery amp hours and the load you actually want to run, using the figures from real Sinowar...
How to Choose a Solar Water Pump
Head first, flow second, then the model table. The method the manufacturer uses, written out....
MPPT and PWM Charging Compared
What the 30 percent figure on our spec sheets means, and when it is worth paying for....
How Pay As You Go Solar Works
The four step token cycle, what OpenPAYGO certification means, and what a distributor has to get right....
Reading Lumens and Run Time on a Spec Sheet
Why a peak lumen figure tells you almost nothing on its own, and what to ask for instead....
Battery Types for Off-Grid Lighting
LiFePO4, lithium-ion, Ni-MH and lead acid, and why the choice is usually about the market rather than the...
Quality Standards for Off-Grid Solar
VeraSol, the Lighting Global quality standards and OpenPAYGO, and what each one actually proves....
Choosing a Solar Fishing Light
Run time through a full night, an IP rating that survives spray, and a hanging arrangement that works on ...
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