How Far Apart Should Solar Path Lights Be? Spacing, Height and Layout

How Far Apart Should Solar Path Lights Be? Spacing, Height and Layout

Most people put solar path lights in the wrong place twice: once when they push the first one into the ground, and again six weeks later when they move them all. The usual mistakes are lights too far apart, lights lined up in a rigid row, and panels placed in the one shady spot in the garden. This guide gives you a layout method that works for a straight path, a curve and a path with steps, and explains why.

What a path light is supposed to do

Path lights do not illuminate a path in the way a floodlight lights a driveway. They mark it. At night your eye needs to find the edges, the changes in direction and the changes in level. A pool of light a metre wide, repeated down the route, gives it all three. That is why spacing is the first thing to get right: too far apart and the path reads as dots with dark gaps, too close and it looks like an airport runway and burns through your batteries for nothing.

The spacing rule of thumb

A good starting point for single-LED marker lights is 1.5 to 2 metres apart. At that spacing each light's glow overlaps the next just enough that the path reads as a continuous line. A few adjustments:

• Brighter lights (several LEDs, a larger lens) can go 2 to 3 metres apart.
• Dimmer single-LED lights, like our pathway stake lights, are best at about 1.5 metres, tightening to 1 metre on bends.
• Wide paths (over 1.2 metres) look better with lights on both sides, staggered rather than directly opposite each other.
• Narrow paths need lights on one side only. Alternate sides if the path winds so the light seems to zig-zag with you.

Six stake lights set at 1.5 to 2 metres therefore mark roughly 9 to 12 metres of one-sided path. That is a useful figure when you are deciding between a 6-pack and two.

Where to put the first and last lights

Start at the places where people make decisions: the gate, the bottom of the steps, the front door. Light those first and then space the rest. The end of the path should also be lit, even if that means a slightly shorter gap, so that nobody walks off the end into darkness.

• Junctions. Put a light on each side of any junction, so you can tell the branch from the main route.
• Bends. Put a light on the outside of a curve, where people might otherwise cut across the garden bed. Add one on the inside of a tight bend as well.
• Steps. Where the path meets steps, switch from path lights to step lights, or run a light at the top and bottom of the flight. See how many step lights you need for the details.

Height and distance from the edge

A stake light that is too tall throws glare into people's eyes and makes the path look cluttered. One that is too low is buried by plants within a season. Aim for the light source to be about 30 to 50 cm off the ground, and 20 to 30 cm back from the path edge, clear of overhanging plants and the swing of a mower. In-ground disk lights (see our disk lights) sit flush, so the only decision is how far back from the edge to set them.

Beside sandstone crazy paving or stepping stones, set stakes in the soil on the garden side and let the pale stone pick up the glow. If you are building the path edge from stone, sandstone garden edging gives the lights a clean line to follow.

Sun, shade and panel position

This is the part most layouts ignore. A solar light only works as well as the charge it received today. Before you commit to a layout, walk the path in the middle of the day and note which positions are in the sun and which are not.

• A light that sits in shade all day will run for a short time or not at all. Shift it to a sunnier spot, even if the spacing is slightly uneven.
• Keep panels clear of mulch, long grass and the shadows of the lights next to them.
• If a stretch of path is shaded the whole day, consider wall lights at its ends, or a different technology for that stretch.

In winter the sun is lower and the days are shorter, so a spot that charges nicely in January may not in July. If you can, check in winter.

A worked example: a 10 metre path

You have a straight 10 metre path from the front gate to the door, with a garden bed on one side and a lawn on the other, and a small curve in the last 2 metres.

1. Mark the first light at the gate and the last at the step to the door.
2. Space the stake lights about 1.7 metres apart along the garden bed side: that is six lights, which fits in one 6-pack.
3. Add one light on the outside of the curve if the bed is wide there.
4. If you want a second edge for depth, set four in-ground disks into the lawn edge opposite, staggered between the stakes. Our Path & Ground Lighting Kit is exactly this combination: six stakes plus four disks.
5. Check each position gets sun, adjust, and leave them a couple of days to charge fully before judging the result.

Common mistakes

• Lights in a perfectly straight row, perfectly evenly spaced. It looks like a runway. Stagger slightly and vary the spacing a little around plantings.
• Too many lights too close together. More lights do not make a better path, only a busier one.
• Ignoring the sun. A beautiful layout under a big tree will be dark by 9 pm.
• Placing lights where they will be tripped over. Keep them off the walking surface.
• Expecting floodlight performance. Marker lights show the way; they do not light the ground. Add a wall light or spotlight if you need to see the surface.
• Mixing different colours. Keep the colour temperature the same across the garden. Warm white blends with stone and planting; a mix of white and warm looks patchy.

Running costs and maintenance

There are none, apart from the occasional wipe of the panels and, eventually, replacing the rechargeable batteries. A light that used to last all evening and now fades early usually needs a new battery or a cleaner panel. If your lights are IP65-rated (ours are), rain and sprinklers are not a problem, but give the panels a clean when they look dusty.

Frequently asked questions

How many solar path lights do I need for a 20 metre path?

At 1.5 to 2 metres apart on one side, about ten to thirteen lights. If you want both sides of a wide path, double that and stagger them.

Should I put lights on both sides of the path?

Only if the path is wide (over about 1.2 metres) or you want a more formal look. For a narrow path one side is enough, and alternating sides on a winding path looks natural.

Why are my path lights dim by midnight?

Usually because the panel did not get enough sun that day, the panel is dirty or shaded, or the battery is ageing. Clean the panels, check the position and consider replacing the battery.

Can I mix stake lights and in-ground lights on one path?

Yes, as long as the colour temperature matches. Stakes give height and in-ground disks give a low glow, and the combination adds depth. That is the idea behind our Path & Ground Lighting Kit.

Bottom line

Space single-LED solar path lights about 1.5 to 2 metres apart, stagger them on wide paths, put the first and last lights at the decision points, keep them 20 to 30 cm back from the edge, and check the sun before you fix anything. For more detail on the kit options see solar path lights, and for the paving that goes with them, browse our sandstone pavers.