Lighting is 12V DC......GFCI is for 120V AC
Check DC Dist Fuse Panel.....typically the AC Power panel with circuit breakers also houses the DC Dist Board with individual fuses for water pump, furnace, lighting etc.
Is it time for your medication or mine?
2007 DODGE 3500 QC SRW 5.9L CTD In-Bed 'quiet gen'
2007 HitchHiker II 32.5 UKTG 2000W Xantex Inverter
US NAVY------USS Decatur DDG31