Better, if it is designed properly. The mistake we see most often is a straight watt-for-watt swap that ignores beam distribution — a 400W metal halide high-bay and a 120W LED spread light very differently. We model to CIBSE levels for the task in each space, so light levels are correct at the working plane rather than just at the fitting.

Usually not. Most conversions reuse existing circuits, and LED draws considerably less, so capacity is rarely the problem. What we do check is the condition of the wiring, the emergency lighting arrangement and whether existing switching supports the controls you want — occasionally that reveals remedial work, which we price separately and transparently.

Yes, and most of our lighting work is done in occupied buildings. Offices are phased floor by floor, largely out of hours; warehouses aisle by aisle with temporary lighting; retail overnight. Only one working area is ever affected, and it is handed back lit and tested before the next is opened.

In spaces with intermittent occupancy — corridors, stores, toilets, meeting rooms, low-traffic aisles — controls often deliver more saving than the lamp change itself, and they pay back fast. In a continuously occupied open-plan office they add less. We recommend controls where the occupancy pattern justifies them and say so where it does not.

The capital cost of a lighting upgrade is generally eligible for the Annual Investment Allowance, so a business paying corporation tax effectively recovers a substantial share in year one — we show this separately in the proposal. Public sector and education schemes may also access decarbonisation funding, and we provide the technical evidence those applications require.