Downlights
Rigel Trimless
from £0.50 ex.VAT
Strips
LED FLX Stix NDPro (Diva-3) Dimmable
from £10.28 ex.VAT
Control Systems
Switching On/Off
from £143.80 ex.VAT
LED Power Supplies
Dali LED Drivers
from £24.27 ex.VAT
LED Power Supplies
Dimming LED Drivers
from £17.13 ex.VAT
Floor Standings
Izara
from £26.65 ex.VAT
Flush Mounts
Kelvis
from £29.31 ex.VAT
Extrusions
LED Tape Extrusion Profile Accessories
from £0.72 ex.VAT
Pendants
Sallino
from £42.65 ex.VAT
Tracks
LED 3 Circuit Track Floodlight 240V
from £52.94 ex.VAT
Low Levels
Quara Micro
from £49.52 ex.VAT
Cables
Exterior Cable
from £90.00 ex.VAT
Cables
Flex Cable
from £1.11 ex.VAT
Pendants
Maluca
from £42.65 ex.VAT
Pendants
Latika
from £122.65 ex.VAT
Pendants
Sandro
from £47.97 ex.VAT
London's trusted lighting specialist since 1968
Trading since 1968, we have unmatched knowledge of lighting products, technologies and design for every type of project.
Visit us in Wandsworth or Fulham to see lighting live, experience controls, and get hands-on advice from our specialists.
Our design service covers everything from a single room to large commercial installations, with full specification support.
Call us on 020 8874 2234 or email for free guidance — whether you're choosing a single fitting or specifying a full project.
See our full lighting ranges live, experience smart controls in action, and speak to our experts in person. Two London locations open six days a week.
Our Brands
At Mr Resistor, we illuminate your world with innovative and high-quality lighting solutions. Based in London, we have over 55 years of expertise in the lighting industry, offering a comprehensive range of products and services to meet all your lighting needs.
From energy-efficient LED lights to bespoke lighting designs, our team of experts is dedicated to providing exceptional customer service and tailored solutions for residential, commercial, and industrial projects. We also specialise in advanced lighting control systems and a wide array of electrical accessories.
Visit our showrooms in Wandsworth or Fulham, London, to explore our extensive display of downlights, pendants, wall lights, outdoor lighting, and commercial lighting.
LED lighting uses up to 80% less energy than traditional halogen and lasts 25,000–50,000 hours. With warm white options down to 2700K, modern LEDs deliver beautiful, efficient light for every room.
Fixed or adjustable, recessed or surface-mounted — downlights suit most ceiling types. Key considerations include beam angle, colour temperature, and IP rating for bathrooms and outdoor use.
From IP65-rated spike lights to marine-grade coastal fittings, outdoor lighting requires the right weatherproofing for each location. Combine wall lights, uplights, and path lighting for a layered effect.
Wise Controls and Lutron systems allow full scene setting, dimming, and scheduling without rewiring. Ideal for new builds, extensions, and retrofit projects where flexibility is essential.
Bathroom lighting must comply with IP zone requirements. Zone 1 (above the bath/shower) requires IP65 minimum; Zone 2 requires IP44. Always confirm ratings before specifying fittings.
Track lighting offers flexible, adjustable illumination ideal for kitchens, retail, and galleries. 48V magnetic track systems allow tool-free repositioning of spotlights, pendants, and linear modules.
2700K–3000K (warm white) suits living areas and bedrooms; 3500K–4000K suits kitchens and offices; 5000K+ (daylight) suits task lighting and commercial spaces. Mixing temperatures in one room is rarely advisable.
Not all LED drivers are dimmable. Always check compatibility between the lamp, driver, and dimmer switch. Leading-edge dimmers suit most LED loads; trailing-edge dimmers are preferred for very low wattage LED circuits.
Our lighting design service covers residential and commercial projects from initial concept through to full specification. We produce lighting layouts, product schedules, and control strategies tailored to your brief.
