Yes, voltage regulators are needed with solar panels 44 Watts or more. If a voltage regulators is required, Gallagher pre-installs the unit prior to shipping any solar products.
IBEX GALLAGHER PRIVATE LIMITED
Regd. Office. 36/1, Subbaramachetty Road, Basavanagudi, Bangalore 560 004, Karnataka, INDIA
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Ibex Gallagher Pvt. Ltd.