1 low power controllers

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1 low power controllers 1 low power controllers:

Inexpensive small controllers are available in the 200-300w / 10-20 amp range from a variety of sources. Many
come with features like USB charge ports, although they're often just PWM and may not be able to perform up
to the max rating on their advertised specs.

These are fine for keeping a battery charged or for other smaller needs requiring just one or two panels,
where you don't need higher power delivery or features like battery temperature monitoring. Pay close
attention to their max rated panel voltage, and make sure your panel Voc doesn't exceed it, or you'll probably
smoke the controller. You can't count on these to have good safety, so make sure to put a fuse on the battery
and panels, to avoid disasters.