Premium drivers
For relevant configurations, we specify established driver brands such as Tridonic and Philips. The exact make, model and control option should be confirmed for the selected luminaire.
Whole-life lighting costs
Lighting total cost of ownership goes beyond the purchase price.
The lowest upfront price can become the highest whole-life cost once energy, maintenance, replacement and lost light are counted.
How to read the graph
L70 means 70% of the original light remains.
A new luminaire starts at 100%. As its LEDs age, output gradually reduces. L70 is not the point when it fails or switches off—it is the point when output has fallen to 70% of its day-one level. Here, the Void is the example Lumenloop fitting; the grey line is a generic import example using an L70 rating at 50,000 hours.
Day oneL70 point
100%70%
Move across the graph or use ← →
At 40,000 hours, the example guides show 93% for the Void and 76% for the generic import alternative.
The Void point is documented product data: L90/B10 at 60,000 hours. The generic import is an example based on an L70 rating at 50,000 hours—not a test of every imported fitting. The straight lines simply join day one to those rated points. Ask any alternative supplier for its configuration-specific L/B evidence before making a like-for-like comparison.
| Benchmark | Operating hours | Maintained light output |
|---|---|---|
| Void example fitting | 0 | 100% |
| Void documented L90/B10 point | 60,000 | 90% |
| Generic import example | 0 | 100% |
| Generic import example L70 point | 50,000 | 70% |
Performance is engineered before the light is switched on.
The components and the way heat is managed affect how hard a luminaire works throughout its life.
Lower thermal stress
A considered drive current can reduce electrical and thermal stress. It must be balanced against the required output, efficacy and the design of the complete luminaire.
Efficient heat paths
Thermally efficient heat sinks help move heat away from LEDs and drivers. Material, contact, airflow and ambient temperature all influence the result.
The aim is not merely to keep working. It is to maintain useful light with fewer interventions.
Whole-life cost
The fitting is only the first item on the bill.
A quote shows the purchase price. Total cost of ownership also includes the electricity used and every intervention the fitting requires: access, labour, replacement parts and disruption to the space.
The purchase price is one term, not the total.
Shown on the quote Purchase Supply price
Runs continually Energy Every operating hour
When attention is needed Maintenance Access, labour and parts
With every intervention Disruption Downtime and lost access
The number to compare Total cost
of ownership Everything paid across the fitting’s useful life
of ownership Everything paid across the fitting’s useful life
Energy runs every hour
Compare actual luminaire input power for the required output, not LED package wattage in isolation. Then account for operating hours, controls and the energy tariff used by the project.
Every intervention has a site cost
A replacement can require survey time, procurement, an electrician, access equipment, isolation, disposal and making good. A difficult ceiling or live workplace increases the consequence.
Inconsistent light has a cost too
Early spot replacements can introduce visible differences in output or colour and create a mixed-age installation. The room may still be lit, but no longer to the intended standard.
Read the complete rating, not just the headline.
- L90 describes the light retained
- At the rated point, the luminaire is expected to retain 90% of its initial light output under the stated evidence and conditions.
- B10 describes the expected population
- B10 means no more than 10% of the specified population is expected to fall below that maintained-output level at the rated point.
- 60,000h describes the rated period
- It is an operating-hours benchmark, not a warranty length or the moment a luminaire is guaranteed to fail.
- L70 is not a switch-off date
- It marks 70% maintained output. Whether that remains suitable depends on the lighting design, while drivers, controls, energy and maintenance still affect total ownership cost.
Compare like with like.
Ask both suppliers for evidence tied to the configuration you intend to buy. A headline specification is not enough if it describes a different output, driver or operating condition.
Evidence to request Why it changes ownership cost
Lumen-maintenance data Shows how output is expected to change and whether the maintained lighting design remains viable.
Driver make, model and loading Identifies a critical component, the control protocol and how it is being used in the selected fitting.
Luminaire input power and controls Turns the required light output and operating pattern into a comparable energy calculation.
Ambient and thermal limits Tests whether the evidence remains relevant in the ceiling, enclosure or operating environment on site.
Access and service strategy Reveals what can be maintained, what must be replaced and what each intervention will require.
Warranty terms and product continuity Clarifies coverage, exclusions and the practical route if a matching component or fitting is needed later.
Compare the cost before you commit.
Share the quantity, operating hours, access constraints and available product data. As a UK commercial lighting manufacturer, we will structure a like-for-like whole-life comparison around the evidence that is actually available.