Three technologies, three philosophies, three price tags. The right choice depends less on aesthetics and more on three numbers: how many hours you actually need, how much you're willing to spend today vs. tomorrow, and whether your garden already has an electrical infrastructure. Let's cut through the noise.
Solar: the promise vs. reality
How it actually works
A mini photovoltaic panel (2–5W) charges a lithium battery during the day. The battery powers the LEDs for 4–8 hours after sunset. The promise: no cables, no electricity bill.
Real pros
5-minute installation with no holes in walls or ground. Ideal for rentals where you can't do structural work. Works well for paths and flower bed borders where 200–400 lumens are enough.
Cons they don't tell you
Lithium batteries last 18–30 months before losing 50% of their capacity. Replacing them costs €8–15 every 2 years. In winter (December–January in northern Italy), there's not enough sunlight: lights off by 11 PM. Below -10°C, batteries shut down completely. Total write-off by the ninth winter.
When to choose solar
Rentals, beach houses, gardens without an external power line, decorative path lighting.
Battery-powered LED (manually rechargeable)
How it works
Standalone lamps with a USB-rechargeable battery. Use them for 1–2 weeks, then bring them inside to charge. Typical examples: table lanterns, centerpiece lamps, magnetic wall lights.
Pros
Maximum placement flexibility (move them wherever you want). Work in winter (no sun dependency). Top-tier aesthetics: 90% of 'designer' lanterns fall into this category.
Cons
You have to remember to charge them. If you're away for 3 weeks, you'll come back to dead batteries. Battery rated for 500–800 charge cycles: ~3 years with daily use.
When to choose
Outdoor dining tables, lounge sofas, occasional ambience. Never for structural path lighting.
Wired 220V: the serious investment
How it works
A dedicated electrical line (buried or surface-mounted) with a permanent light point. Constant power supply, unlimited wattage.
Pros
Total reliability: it turns on every time, even after 10 years. Supports any type of fixture (powerful spotlights, floodlights, architectural facade lighting). Adds value to your home.
Cons
Installation cost: €200–800 for the first light point (trenching, cable laying, junction box). Additional points run €50–200 each on the same line. Requires a certified electrician for building permit compliance.
When to choose
Owner-occupied homes, structured gardens where you want results that last 15–20 years, architectural facade lighting, perimeter security with motion sensors.
The three-layer rule
Layer 1: ambient
Diffused light that 'sets the mood' of a space. Example: in-ground spotlights uplighting a tree. Wired solution.
Layer 2: task
Functional light where you actually do things. Example: wall light above the BBQ, lamp over the dining table. Wired or rechargeable.
Layer 3: accent
Decorative light that creates atmosphere. Example: LED candle lanterns, string lights on a pergola. Solar or rechargeable.
The golden rule
Never use just one layer. A garden with only ambient light looks like a car park. Only accent looks like a photo set. Only task looks like a construction site. You need all three, balanced.
Quick lumen calculator
Path/Walkway
100–200 lumens every 2–3 metres.
Dining area (above the table)
300–500 lumens total, warm light (2700K), avoid harsh shadows on faces.
Perimeter security
500–800 lumens per point, with a PIR sensor. Activates only when needed.
Lighting a tree
One 600–800 lumen spotlight per 4 metres of height. Position at the base, angled at 45°.
Frequently asked questions
Do solar lights work in winter?
Yes, but with 50–70% reduced runtime. In December–January (northern Italy) they may not turn on at all if there hasn't been a full day of sun. For reliable winter lighting, go wired or rechargeable.
How much does a 10W LED spotlight use running 5 hours a day?
About 0.05 kWh/day → 18 kWh/year → €5–6 per year at average Italian tariffs. Ten spotlights = €50–60/year. Nothing that will change your life.
Can I convert a solar lamp to wired?
Technically yes, but not recommended: the internal driver is sized for low wattage and low voltage. The cost of conversion > the price of a new wired lamp.
How many lumens do I need to dine outdoors?
300–500 lumens total spread across 4–6 light points around the table — never one strong overhead source (eye strain). Colour temperature: 2700K warm, never 4000K cool (it kills the food effect).
Does outdoor lighting attract mosquitoes?
Yes, but it depends on wavelength. LED lights at 2700–3000K (warm) attract 70% fewer mosquitoes than fluorescent or cool LEDs. If mosquitoes are a problem, stick to amber LEDs (2200K) in living spaces.