Lighting And Electrics: Getting The Practical Details Right
Category: Kitchens & Bathrooms
Author: Central Scotland Tradesmen
Published: 2026-02-19
Plan effective lighting and electrical layouts for kitchens and bathrooms, from task lighting to socket positions and extraction requirements.
Lighting and electrics are among the hardest things to change once a kitchen or bathroom is finished. Getting these practical details right at the planning stage saves years of frustration with dim corners, insufficient sockets, and noisy extraction.
Understanding Kitchen Lighting
Effective kitchen lighting combines multiple types working together:
| Lighting Type | Purpose | Common Solutions |
|---|---|---|
| Task Lighting | Illuminate work surfaces | Under-cabinet LED strips, recessed downlights over worktops |
| General/Ambient | Overall room brightness | Ceiling downlights, flush fittings, central pendant |
| Accent Lighting | Highlight features | In-cupboard lights, shelf lighting, plinth lights |
| Feature Lighting | Statement and mood | Pendant over island, decorative fittings |
Under-Cabinet Lighting Options
- LED strip lights: Continuous glow, easy to install, can be colour-temperature adjustable
- LED puck lights: Individual spots, good for highlighting areas, more visible fixtures
- Linear LED bars: Slim profiles, even distribution, professional look
- Integrated lighting: Built into unit bases, seamless appearance, installed during fit
Downlight Positioning
Ceiling downlights work best positioned over work zones, not in the centre of the room:
- Position lights 300-400mm out from wall units to illuminate worktops without shadows
- Space lights 900-1200mm apart for even coverage
- Consider dimmable circuits for different moods
- Avoid placing lights behind where you'll stand—this casts shadows on work surfaces
Bathroom Lighting Requirements
Bathrooms have specific safety requirements because of water proximity:
| Zone | Description | IP Rating Required | Voltage |
|---|---|---|---|
| Zone 0 | Inside bath or shower | IPX7 (immersion) | Max 12V |
| Zone 1 | Above bath/shower to 2.25m height | IPX4 (splash) | 12V or protected 240V |
| Zone 2 | 600mm around Zone 1 + above basins | IPX4 | Standard fittings with IP4X |
| Outside Zones | Rest of bathroom | No IP requirement | Standard fittings |
Bathroom Lighting Tips
- Mirror lights or cabinet lights either side of the mirror eliminate shadows on faces
- Ceiling downlights directly above the mirror cast unflattering shadows—avoid this
- Consider a night light mode for middle-of-night visits without full brightness
- Illuminated mirrors combine practical lighting with contemporary style
Kitchen Socket Planning
Modern kitchens need far more sockets than older installations provided:
Socket Requirements
- Above worktop: Minimum 2 double sockets per 1.5m of worktop run
- For fixed appliances: Dedicated sockets for oven, hob, dishwasher, fridge, washing machine
- Hidden sockets: Inside larder units for food processors that live there
- USB sockets: Useful for charging devices without adapters
- Island power: Pop-up or flush-mounted sockets if you have an island
Dedicated Circuits
Kitchen appliances draw significant power. Building Regulations and good practice require:
- Electric oven: Dedicated 32A circuit with appropriate cable
- Electric hob: Often requires 45A circuit for induction hobs
- Fridge-freezer: Dedicated socket prevents accidental unplugging
- Dishwasher and washing machine: Can share a circuit but dedicated is preferred
Extraction Requirements
Kitchen Extraction
| Extraction Type | Effectiveness | Installation | Best For |
|---|---|---|---|
| Ducted to outside | Excellent | Requires external vent | Serious cooks, any hob type |
| Recirculating | Moderate | No external vent needed | Where ducting impossible |
| Downdraft | Good | Built into worktop | Islands, clean sightlines |
| Ceiling mount | Excellent | Requires ceiling void | Large islands, statement kitchens |
Bathroom Extraction
Building Regulations require mechanical ventilation in bathrooms without openable windows. Even with windows, mechanical extraction is strongly recommended:
- Minimum capacity: 15 litres per second (54 mÂł/hour)
- Run-on timer: Should continue 15-20 minutes after bathroom use
- Humidity sensor: Automatically activates when moisture rises—ideal for forgetful households
- Quiet operation: Look for fans rated under 30dB for bedroom en-suites
Planning For The Future
Future-Proof Electrical Planning
- Install more sockets than you think you need—cheaper now than later
- Consider running conduit or cable paths for future smart home features
- USB-C sockets are increasingly useful as device charging shifts
- Smart switches at light positions enable later automation
- Plan for potential EV charger cable routes if applicable
Frequently Asked Questions
Do I need an electrician for kitchen and bathroom work?
Most kitchen and bathroom electrical work requires a qualified electrician registered with a competent person scheme (like NICEIC or NAPIT). They can self-certify the work meets Building Regulations. DIY electrical work in kitchens and bathrooms requires Building Control inspection.
Can I add sockets to an existing kitchen?
Yes, but it depends on the existing circuit capacity. An electrician can assess whether the ring main has capacity for additional sockets or whether a new circuit is needed.
What's the best colour temperature for kitchen lighting?
3000K-4000K works well for kitchens—warm enough to be inviting but bright enough for food preparation. Cooler light (5000K+) can look clinical; warmer light (2700K) can make food colours look odd.
Do recirculating extractors work?
They remove grease and reduce odours but cannot remove moisture or heat. For induction hobs with less grease, they're adequate. For gas hobs or heavy cooking, ducted extraction is far superior.
Find Trusted Specialists
These Central Scotland contractors coordinate lighting and electrical work as part of complete kitchen and bathroom installations: