Bdrodge t1_is53kpx wrote on October 13, 2022 at 11:22 AM Reply to Water pump not working when hooked to 12V battery, 20 W solar panel, & PWM solar charger controller by anh_cloud9 On some of the charge controllers the light output is only active when it is dark. The button is for how long you want the light on after dark. Cover the solar panel and see if it works. Permalink 1
Bdrodge t1_is53kpx wrote
Reply to Water pump not working when hooked to 12V battery, 20 W solar panel, & PWM solar charger controller by anh_cloud9
On some of the charge controllers the light output is only active when it is dark. The button is for how long you want the light on after dark. Cover the solar panel and see if it works.