Spike Lights
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Types of Spike Lights and Their Features
The choice of a spike light depends on the desired light source and the required flexibility. There are mainly two types of spike lights to distinguish:
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LED Spike Lights with Integrated Light Source
These spike lights are equipped with a built-in LED chip, which means the light source cannot be replaced separately. The advantage of this is a compact design and a long lifespan of the LED. They are often energy-efficient and provide a consistent light output throughout the entire life of the lamp.
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Spike Lights with GU10 Fitting
Spike lights with a GU10 fitting offer the ability to replace the light source. This provides flexibility in choosing the light color, beam angle, and dimmability. If a light source fails, it can be easily replaced without changing the entire fixture. Ensure that the chosen GU10 bulb is suitable for outdoor use and respects the IP rating of the fixture.
Practical Considerations for Installing Spike Lights
For a durable and safe installation of spike lights, there are several important points to consider. This section answers frequently asked questions from installers.
Water Resistance and Protection: The IP Rating of Spike Lights
A common question is what IP rating a spike light should have for a specific location. The IP (Ingress Protection) rating indicates the degree of protection against dust and water. For spike lights, which are often placed directly in the ground or among plants, a higher IP rating is recommended.
| IP Rating | Protection | Typical Application for Spike Lights |
|---|---|---|
| IP44 | Splash-proof | Sheltered places, such as under a canopy or carport. |
| IP65 | Dust-tight and jet-proof | Outdoors in unsheltered places, directly in the garden or along paths. |
| IP67 | Dust-tight and waterproof against temporary immersion | Placement in the ground where water can pool, for example, after rainfall. |
| IP68 | Dust-tight and waterproof against permanent immersion | Suitable for pond edges, wet soils, or places where water may stand for long periods. |
When installing spike lights in the garden, ensure the IP rating matches the conditions. If a spike light is placed in damp soil, even if it is not submerged, an IP67 or IP68 fixture is worth considering to prevent long-term problems.
Choosing Light Color and Brightness for the Right Atmosphere
How do you determine the right light color and brightness (Lumen) for spike lights? This depends on the intended effect and the environment.
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Light Color (Kelvin):
- 2200K - 2700K (extra warm white to warm white): This creates a cozy, inviting atmosphere and is often chosen for accentuating plants, seating areas, or decorative elements.
- 3000K (warm white): A neutral, generally usable light color that provides a pleasant glow without being too cool. This works well for general garden lighting or path lighting.
- 4000K (cool white): This color is functional and bright, suitable for illuminating paths, driveways, or objects that need to be clearly visible.
- Brightness (Lumen): The required Lumen value varies. For subtle accent lighting, lower Lumen values (e.g., 200-400 Lumens) are sufficient. If the goal is to brightly illuminate a path, a higher Lumen value (400-800 Lumens or more) is more appropriate. Keep in mind that overly bright lighting can be disruptive in a garden.
Connecting Spike Lights: Low Voltage vs. Mains Voltage
Installers often ask about the difference between 12V (low voltage) and 230V (mains voltage) spike lights and the implications for installation. Both systems have their own installation methods and safety considerations.
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12V Low-Voltage Systems
These systems operate with a transformer that converts the mains voltage to a safe 12V. The advantage is that the cables do not need to be buried as deep (often only 10-20 cm) and the installation is simpler. The cables are more flexible and less risky to install yourself. Many 12V systems are 'plug-and-play', using connectors that speed up installation. This makes 12V a suitable option for DIY enthusiasts and when layout flexibility is desired.
For further explanation on low voltage, see our article on installing 12V outdoor lighting.
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230V Mains-Voltage Systems
These spike lights are connected directly to the mains voltage. The cabling must be buried deeper (at least 60 cm) and must be of the correct type (armoured cable or similar). All connections must be made waterproof with suitable connectors. This often requires more expertise, and the presence of a residual-current device (RCD) is a safety requirement. The advantage of 230V is a more stable power supply over longer distances and the ability to use more powerful lamps.
For a visual guide on laying underground cables, a [Video: Installing underground cables for outdoor lighting] can be a valuable addition here.
Maintenance and Lifespan of Spike Lights
LED spike lights are known for their long lifespan, often up to 50,000 burning hours, which corresponds to many years of use. Regular maintenance is simple and helps to maintain functionality. This includes occasionally cleaning the lens to ensure optimal light output, and checking the ground spike for stability, especially after strong wind or rain. Fixtures made from high-quality materials such as aluminum or stainless steel contribute to the durability and weather resistance of the spike lights.