Sizzor head

Thanks everyone for your replies. My ignorance in solar is very apparent. My cameras are 24VAC and can not run on DC. So my original question on a 50W 12VDC to 24VAC converter is still posted. I know of a 40W converter but I can not find a higher rated unit. This was my thinking: The wireless system draws 1W so max system draw is 49W with 1W for inefficencies, giving 50W worse case, heater-on condition. Without heater, Max power is 25W. 50W at 12V gives 4.1A max current draw. The deep discharge batt has 140A/H with 80% of this being 112 available A/H. This means the batt alone can supply 26.9 (50W) to 53.7(25W) hours of camera working time. 80W solar panel can supply 4.6A/H in full sunshine so solar panel alone can supply enough power for worst case 50W. My operating caveats are: System will be shut off at night. System will be installed in a part of the country that has >300 days of sunshine. System is a temporary and intermittent install to provide video coverage at an explosive test range. If I can get two weeks of "maintenance free" working time out of the system, I'd be happy.

I'm working on a wireless standalone CCTV that will have a 80W solar panel and a 12V deep discharge battery. The camera is a 24VAC PTZ outdoor dome camera that draws 48W when the heater is on. Anyone know of a efficient 12V DC to 24VAC converter that can handle 50W? All the best and thanks for the help,