Off-Grid Property Lighting:
Real Solar Power for Ranches, Farms & Rural Land

Yes — but it depends entirely on the battery. Solaraluma uses 24Ah–30Ah LiFePO4 (lithium iron phosphate) batteries, the same chemistry used in electric vehicles. On a full charge from 4–6 hours of direct sunlight, these lights run 8–12 hours continuously. At 3 AM, you still have 30%+ charge remaining. Budget solar lights with 5–8Ah standard lithium batteries typically die by midnight — that's the core difference.

Both the 2550LM Street Light and the 1664LM Flood Light deliver 8–12 hours of continuous runtime on a full charge. Both include timer modes — 3H, 5H, and 8H — if you want to conserve battery during cloudy stretches in winter. On a full charge, you still have roughly 30% battery remaining at dawn, which also serves as reserve for consecutive cloudy nights.

No — and that's the entire point. These are fully off-grid solar lights. No conduit, no trenching, no permit required anywhere in the U.S. for solar-powered outdoor lighting, no electrician. The national average for running a wired line to a barn or gate is $800–$1,400. Every Solaraluma install requires only a drill, a Phillips screwdriver, and about 20 minutes. All mounting hardware ships in the box.

Yes — and this is the defining feature of the Solaraluma Flex 1664. The 16.4-foot (5-meter) weatherproof DC cable lets you mount the solar panel in full sun on the south-facing barn roof, while the flood light illuminates a shaded north wall, interior stall, or covered porch. Most competitors lock the panel and light to the same surface, forcing you to sacrifice either charge or coverage. The 1664 eliminates that compromise entirely.

The LiFePO4 battery provides 2–5 days of backup autonomy depending on mode. In Sensor Mode (motion-triggered), the 2550LM can last 4–5 consecutive cloudy days. In constant AUTO mode, expect 2–3 days. For extended cloudy periods — common in the Pacific Northwest or during northern winters — switch to Half Brightness + 8H Timer mode to stretch your reserves without losing overnight coverage.

Yes. Both lights are rated for -4°F to 140°F (-20°C to 60°C) operation. The LiFePO4 battery chemistry maintains stable output well below freezing — unlike standard Li-ion batteries, which lose 30–50% of their capacity in cold temperatures. That's exactly why cheap solar lights "work" in July and fail every January on northern properties. During December–February, use the 8H Timer + Half Brightness setting to get the most out of the shortest charging days of the year.

A single 2550LM Street Light covers a 60-foot radius at 12–16ft mounting height — enough for one gate entrance or driveway segment. For a 300ft driveway, space 5–6 lights on alternating sides every 60 feet. The 1664LM Flood Light covers approximately 800 sq ft from a 10ft mounting height. For a standard 40×60ft barn, 3 units positioned at the upper wall corners and center ridge give full, even coverage with no dark corners. Use the coverage table on this page to find your exact scenario.

The 2550LM is a pole, wall, or post-mount street-style light built for open driveways, gate entrances, and long perimeter coverage runs. It projects light downward and outward in a wide radius with motion sensor and constant modes — think commercial street-light output on your ranch. The 1664LM is a flood light with a detachable panel — ideal for shaded barn walls, covered porches, and interior barn use where the panel lives separately in full sun. Both run all night on LiFePO4 batteries.

Actually the opposite — Sensor Mode preserves battery life. It fires to full brightness only when motion is detected and drops to low-standby power the rest of the time. This is why Sensor Mode delivers 4–5 days of cloudy-weather backup vs. 2–3 days for constant AUTO mode. It also delivers maximum lumens when it activates, since it isn't running at reduced output to stretch battery life all night. For most off-grid barn and perimeter security applications, Sensor Mode is the recommended default.

Yes, genuinely — and the 20-minute estimate comes from actual verified customer installs, not a marketing number. You need a drill, a screwdriver, and the included hardware. Mark your holes using the bracket as a template, drill, mount the bracket, hang the light, connect the panel cable (flood light), point the remote and press AUTO. For the flood light, add 5 minutes to route the cable cleanly. If you've ever mounted a shelf or hung a picture, you're already overqualified. Step-by-step guides are linked on this page for both products.

Very little — and most of it takes less than 5 minutes. Wipe the solar panel with a damp cloth every 4–6 weeks; dust and pollen can reduce charging efficiency by up to 30% in dry ranch environments. Check the DC cable connection on the flood light twice a year (spring and fall) to confirm it's fully seated. In northern states, re-angle the panel to 40–45° tilt during December–February for better winter sun capture. Battery replacement is a straightforward DIY job when needed — typically 8–12 years after installation.

Yes — and this is the most popular installation among Solaraluma barn owners. Drill a ½-inch hole through the barn wall. Run the 16.4ft weatherproof DC cable through it. Mount the flood light inside the stall at 8–10ft height. Mount the solar panel on the exterior south-facing wall or roofline. The waterproof connector holds up to moisture and temperature swings even where the cable passes through the wall. You get full solar charging on the outside and full illumination on the inside — which is completely impossible with any fixed-panel solar light.