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Off-grid lighting products were once restricted to truly off-grid locations. Old-school lead-acid batteries needed regular maintenance and the added costs made these fixtures only practical where wiring simply wasn’t possible, in applications like remote cell towers or other such locations. That’s changing quickly, though. New all-in-one options combine high-efficiency LED fixtures with attached solar panels and lithium-ion batteries, creating affordable new possibilities for wires-free area lighting installations, even in dense urban locations.