I have a Way Too Cool 18 watt DC SW-LW portable lamp. Bill Gardner says each tube uses 2.2 amps. I plan on running both the SW & LW simultaneously with the fan on. This should draw a conservative 7 amps.
I'm not a DIY person, so I would like to purchase a 12V battery pack that would last for 2 - 4 hours. I've ruled Lead Acid out because of the weight. This leaves Lithium or NiMH batteries. Does anyone have a recommendation? Also who would be a good vendor to purchase from?