Green Guru LLC Irrigation & Landscape Lighting

Landscape Lighting

Landscape Lighting Product Guides

Most repeat lighting failures are wiring, splice, and distribution failures, not fixture style problems.

This hub gives the fastest route from symptom to fix path so you can stop chasing bulbs and restore predictable system output.

Voltage drop discipline Waterproof splices Transformer sizing & taps Smart control readiness

Not sure where the problem starts? Book service and we’ll diagnose the system on-site.

Company standard: We prefer contractor-grade fixtures designed for serviceability (Alliance Outdoor Lighting is a common fit), consistent LED retrofits, and disciplined, waterproof splice practices.
Smart Link (Green Guru): Smart control only helps if the transformer location stays reachable. Smart Link adds cellular internet and a local Wi‑Fi network at the install point for select deployments where property Wi‑Fi doesn’t reach (so control stays serviceable in real-world installs).

Quick Answer: Where should I start?

Start with the failure pattern: dim-at-end (voltage drop), intermittent/flicker (splice integrity), or transformer behavior. Then use the matching guide before replacing parts.

Fixture-Swap Guessing vs. Reliability-First Troubleshooting

Fixture-Swap Guessing Guide-First Troubleshooting
Replace lamps repeatedly without system checks Diagnose voltage/splice/transformer constraints first
Intermittent issues return after weather changes Waterproof splice discipline reduces recurrence
Uneven brightness accepted as normal Run balance and voltage targets restored
Control apps unreliable at transformer location Connectivity foundation planned where needed

Common symptoms — fastest guide

Dim at the end

Voltage drop basics

Wire gauge and run length are the first checks when the far end looks weak.

Open wire gauge guide →

Intermittent / flicker

Splice discipline

Most reliability failures are corrosion at connections—fix the splice, not the bulb.

Open splice guide →

Transformer questions

Sizing + taps

Correct tap selection helps you get predictable brightness without burning out lamps.

Open transformer guide →

How to use this hub (Phase 1-3 workflow)

  • 1

    Identify the dominant symptom

    Choose the path based on what is failing now: dim runs, intermittent output, or transformer/control instability.

  • 2

    Open the matching technical guide

    Use the relevant page to verify likely root causes and the expected repair sequence before buying replacements.

  • 3

    Validate wiring and distribution constraints

    Confirm gauge, splice quality, run loading, and tap strategy so output remains stable after repairs.

  • 4

    Escalate to service if identity/fit is unclear

    When field conditions are unknown, we diagnose on-site and map the cleanest long-term path.

Browse by topic

Power (transformers)

Wiring, splices & enclosures

Most "half the yard is dim" calls are voltage drop + corrosion at splices. Hub enclosures keep branch runs serviceable.

LED retrofits

Control (reachability)

Smart control only works when the transformer location stays reachable. If Wi‑Fi is weak (or doesn’t exist) at the transformer, Smart Link can add cellular internet and a local Wi‑Fi network at the install point so control stays serviceable.

FAQs

What is this lighting product guides page for?

This page routes you to the right lighting repair and upgrade guides based on symptoms such as flicker, dim zones, transformer issues, or control reachability problems.

What causes lights at the end of a run to look dim?

Most often it is voltage drop caused by run length, wire gauge mismatch, excessive load per run, or resistance from degraded splices.

Are flickering lights usually bad bulbs?

Not always. Flicker frequently traces back to splice corrosion, weak transformer output paths, or unstable low-voltage distribution.

When should waterproof splice repair be prioritized?

Prioritize splice repair when failures follow rain, fixtures behave intermittently, or corrosion is visible in buried or legacy connections.

How do I choose the right transformer guide?

Use the transformer guide when runs are uneven, loads have changed, or tap settings are unknown. Correct tap and load distribution are key to stable output.

Do I need property Wi-Fi for lighting smart control?

Not always. Smart Link can provide connectivity at the transformer location when property Wi-Fi does not reliably reach equipment.

Can Green Guru identify unknown lighting components on-site?

Yes. During service visits we identify installed components, verify system behavior under load, and map the cleanest repair or upgrade path.

Are these guides replacement instructions or service references?

They are service references. Final component selection and installation details are confirmed on-site based on system condition and goals.

Related services: Design & Installation, Repairs, Upgrades, and the Lighting Service Plan. Education: Lighting guide.

Service-first note: Our product pages are written to help you diagnose the problem and choose the right repair path. If you’re unsure, book service and we’ll identify the correct parts on-site.

At a glance

Lighting guide scope
SystemLow-voltage landscape lighting (12V)
Most common failuresVoltage drop, corrosion at splices, transformer tap mismatch
Service-first goalPredictable brightness + serviceable wiring
RelatedDesign & Installation, Repairs, Upgrades, Lighting guide

Fast help

Most low-voltage lighting problems are transformer sizing/taps, voltage drop, corrosion at splices, or damaged cable. We can diagnose quickly and recommend the cleanest fix path.

Online Booking Request a Free Inspection

Related: Lighting Services and Lighting guide