Before/after: the transformation of Grolley church with an LED candle holder

Grolley: a flagship installation in Fribourg

The parish church of Grolley, in the canton of Fribourg, has become a reference for parishes considering the switch to LED candles. This case study details the concrete transformation — the before, the during and the after — to give parish decision-makers a realistic picture of what this transition involves.

Before: the daily reality of traditional candles

The initial state

Before the LumignonLED candle holder was installed, Grolley church had a traditional metal display placed in the side nave, in front of a statue of the Virgin. This display held tea lights and tapers of various sizes, fed by a coin collection box system.

The visual assessment was telling:

• Walls blackened by soot — a grey halo spread across the stone above the display, contrasting with the whiteness of the rest of the restored nave.
• Wax-stained floor — wax residue embedded in the joints of the natural stone slabs, impossible to fully remove.
• Ageing display — the metal structure, deformed by repeated heat, showed traces of oxidation and warped cups.
• Cluttered environment — boxes of replacement candles, matches, mandatory fire extinguisher in the immediate vicinity.

Daily constraints

The sacristan and volunteers in Grolley devoted considerable time to maintenance:

• Daily cleaning — removing burned-out candle remains, scraping melted wax from cups, cleaning drips from the structure.
• Supplies — ordering, receiving and storing candles (several boxes per month).
• Supervision — regularly checking that poorly placed candles did not risk falling or igniting something nearby.
• Collection box management — emptying coins, counting, banking — for increasingly modest sums.

The total annual cost (candles, cleaning, valued volunteer time) exceeded 2,000 CHF, not counting the accelerated wear on walls and furniture.

The transition: an installation without disruption

Preparation

Before the actual installation, a technical assessment was carried out to verify:

• The availability of a 230V socket nearby (in Grolley's case, a socket existed behind the adjacent pillar).
• The dimensions of the available space to ensure the 40-candle holder would integrate harmoniously.
• The floor solidity to support the unit's 30 kg (no issue on the stone slabs).

Installation day

Installation took place on a Saturday morning, between services. The process was remarkably simple:

• Removal of the old display — 20 minutes, including cleanup.
• Placement of the LumignonLED candle holder — positioning, levelling, stability check.
• Electrical connection — plugging into the existing socket, discreet cable routing.
• Testing — verification of each of the 40 push buttons and the LED flame effect.
• Total duration — less than 2 hours, from old display to new operational candle holder.

The following Sunday, parishioners discovered the new candle holder. A brief word from the priest at the start of Mass was enough to explain how it works: "Press a button, the flame lights up for 5 hours. Pray as before."

After: the concrete results

Visual impact

The difference is striking. The space around the candle holder is now:

• Permanently clean — no wax, no soot, no residue. The floor and walls remain spotless.
• Uncluttered — no more candle boxes, matches, or visible fire extinguisher. The space breathes.
• Warm and luminous — the 40 LED flames create a living light effect, with a realistic flicker that surprises visitors who expect "cold plastic".
• Architecturally integrated — the LumignonLED's sober, elegant metal structure naturally harmonises with the church's heritage elements.

Practical impact

For the sacristan and volunteers, the change is dramatic:

• Virtually zero maintenance — an occasional wipe of the structure is all that is needed.
• Zero supplies — no more candle orders, no storage, no handling.
• Zero supervision — no fire risk, the candle holder can operate 24/7 in complete safety.
• Time freed up — volunteers estimate they save 3 to 4 hours per week, reinvested in other parish activities.

Impact on worshippers

The most surprising feedback concerns the number of candles lit. Since the LED candle holder was installed, more people are using it. Several explanations:

• The gesture is free (push button, no coin required), removing a psychological and financial barrier.
• The 30-second delay before full illumination creates a moment of anticipation conducive to contemplation.
• The 5-hour duration per press is reassuring: the candle will remain lit long after the worshipper has left.
• Non-practising visitors, particularly tourists, are more willing to make the gesture when it is simple and involves no financial commitment.

Financial impact

The one-year financial assessment confirms the projections:

• Savings on candles — approximately 800 CHF/year saved on purchasing tapers and tea lights.
• Savings on cleaning — elimination of the annual professional wall cleaning (1,200 CHF).
• Insurance savings — reduced fire premium thanks to the elimination of open-flame risk.
• Electricity consumption — negligible, a few francs per month.
• Voluntary donations — the collection box placed next to the candle holder generates revenue comparable to the old coin system.

What Grolley teaches other parishes

The Grolley experience has become a showcase for LumignonLED. Several parishes in the region have come to see the transformation firsthand before making their own decision. This is what we recommend: nothing beats a visit in a real-world setting to be convinced.

Key lessons from this installation:

• The transition is technically simple — no building work, no structural modifications.
• Acceptance is rapid — a few weeks are enough for the new system to become the norm.
• The benefits are measurable — in time, money and peace of mind.
• Heritage is better protected — no more soot, wax, or parasitic heat.

If your parish is still hesitating, we invite you to discover how other Swiss parishes, including a bicentennial parish, have successfully made the same transition. The step is smaller than you think.