What to think about before switching a commercial building to LED, from light levels to controls and emergency lighting.

Quick answer: Look at light levels for how each space is used, add sensible controls such as presence and daylight sensors, check your emergency lighting, and plan the work to avoid disruption.
LED fittings use less energy than older fluorescent and halogen lighting and usually need far less maintenance. For many commercial buildings, lighting is one of the easier places to cut running costs.
Different spaces need different amounts of light. An open plan office, a warehouse and a corridor all have different needs. A good upgrade looks at how each area is used rather than swapping fittings like for like.
An upgrade is a good time to review emergency lighting. Many LED fittings are available with integrated emergency packs, and it's worth making sure coverage and testing arrangements are up to date.
Lighting upgrades often involve ceiling work, especially in suspended grid ceilings. Planning the lighting and ceilings together avoids damage, repeat visits and mismatched finishes.
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Related service: Electrical Works