Oprawa bollard wyjaśniona część po części: materiały obudowy, typy optyki, strumień świetlny LED, zasilanie przewodowe vs. solarne, klasy IP i kotwienie — plus drabina specyfikacji dla typowych projektów.
Anatomy of a Bollard Light Fixture
A bollard light looks simple from the outside — a post with a light in it — but the construction decisions inside that post determine whether it survives five winters or one. Understanding the fixture's anatomy is what turns a buyer from a price-comparer into a specifier. A bollard fixture has five functional parts: the housing, the optical system, the light source, the driver or battery, and the anchoring system.
Housing Types and Materials
The housing is the fixture's armor. Three material families dominate:
- 304 stainless steel: The commercial standard. Corrosion-resistant in most climates, takes a brushed or mirror polish, and handles impact. Our 40cm 304 stainless bollard and 60cm version use this throughout.
- 316 stainless steel: Adds molybdenum for chloride resistance. Required for coastal sites, pool surrounds and anywhere de-icing salt is used.
- Die-cast or extruded aluminum: Lighter and cheaper, powder-coated in any color. Good performance when the coating is intact; vulnerable once scratched in corrosive environments.
Housing form matters too. Louvered heads cut glare by shielding the source from horizontal sightlines; open-top designs throw wider light but risk debris ingress; frosted-lens cylinders give the softest distribution. Each suits a different application — louvers for pathways near seating, open tops for open plazas.
Optical Systems: How the Light Gets Out
Bollard optics fall into three patterns:
- Downlight: Source aims at an internal reflector that throws light down and out — the most common pattern, giving even ground coverage with minimal glare.
- 360° radial: Light exits through the full cylinder, useful for open plazas but wasteful where light is only needed on one side.
- Asymmetric: Engineered to throw light preferentially toward the path side — the most efficient pattern for linear pathway runs, and worth the premium on long installations.
Light Source and Output
Modern bollards use integrated LED arrays rated 50,000 hours. Working output ranges: 3W / ~150–200 lumens for residential paths, 5W / ~300 lumens for commercial walkways, and up to 10W+ for plaza and perimeter applications. Color temperature is a project decision: 3000K warm white flatters landscape planting and masonry; 4000K neutral reads more institutional; 6500K cool white suits modern architectural schemes. Consistency across a property matters more than any single choice.
Power: Wired Drivers vs Solar
Wired bollards run on low-voltage (12–24V) or line-voltage (100–277VAC) drivers. Low-voltage is safer to install and standard for landscape work; line-voltage suits long commercial runs where voltage drop would otherwise require thick cable. Solar bollards integrate panel, battery and photocell into the post — our solar pathway range shows the no-trench alternative for retrofit and remote sites.
IP Ratings and Sealing
IP65 is the minimum for above-grade bollards; IP67 — protection against temporary submersion — is the professional specification, because bollards sit exactly at the grade line where irrigation, snowmelt and sheet flooding concentrate. Ask suppliers for test evidence, not just the rating. Our guide to IP67 vs IP65 shows what happens when the lower rating is used at grade.
Anchoring: The Part Nobody Photographs
Bollard failures are more often mechanical than electrical. A proper installation anchors the fixture to a concrete footing via a threaded anchor flange or embedded anchor bolts — not a ground spike. The anchor resists wind loads, vehicle contact and, critically, the leverage of someone leaning on or kicking the post. When comparing quotes, check that anchoring hardware is included; it is a common place for suppliers to quietly strip cost.
Standard Specification Ladder
To make this concrete, here is how specifications ladder across typical projects:
- Residential garden path: 40cm, 304 stainless, 3W, 3000K, IP67, low-voltage or solar.
- Commercial walkway / HOA: 60cm, 304 stainless, 5W, 3000K, IP67, low-voltage, louvered head.
- Coastal hospitality: 60cm, 316 stainless, 5W, 3000K, IP67, asymmetric optic.
- Plaza / perimeter: 60–100cm, 304/316 stainless, 5–10W, 3000–4000K, IP67, line-voltage, anchor-flange mount.
Frequently Asked Questions
What is the difference between a bollard light and a path light? Path lights are typically stake-mounted garden fixtures 30–50cm tall with a cap-style head; bollards are rigid, anchored posts with integrated optics, built for commercial durability and precise light distribution.
What wattage bollard light do I need? 3W for residential paths, 5W for commercial walkways, 5–10W for plazas and perimeters. Compare lumens, not just watts: 100–200lm per fixture for paths, 300lm+ for commercial areas.
Are louvered bollard heads better? For glare control near seating and windows, yes. For maximum ground coverage in open areas, open-top or frosted designs distribute more evenly.
Can bollard lights be replaced individually? Yes — wired bollards disconnect at a junction box; solar units lift out of the anchor. Specifying a common anchor size across a project makes future swaps trivial.
What IP rating should a bollard light have? IP67 for anything at grade level. IP65 is acceptable only for elevated, well-drained installations.
Compare Real Fixtures
The fastest way to internalize these specs is to compare real product pages side by side — see the 40cm and 60cm stainless bollards, the 6W garden path light, and the full range on the OKELI products page. For application-level guidance, read what bollard lights are used for.