17 thoughts on “Spider Farmer SF Series Led Grow Lights User Manual”
Todd Walker
Does the sf 4000 come with a dimmer switch?
November 13, 2019 at 07:01am
Ken
4000 question. Trying to determine effective depth of canopy.
4×4×80 tent, 18” from canopy top can allow 24”, 30”, density etc…of good enough par readings. Or what’s par readings at 60”?