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  • ROBUS energy saving luminaires

    At least 75% of fittings must be low energy

  • Fixed external lighting should not exceed 150W and be controlled

  • The lamp holder used must be such that it can only accept energy efficient lamps

Energy Saving Calculator

ROBUS continually invest in the creation and development of practical low energy lighting solutions and offers a comprehensive range of low energy lamps and luminaires in all categories.

Today’s energy saving solutions are not limited to LEDs, but also compact fluorescents and induction lighting for increased longevity, low running costs and greater output.

LED's are rapidly evolving into the most efficient light source available. Combine this with the phasing out of inefficient lamps across the industry and the results are a revolution in the lighting sector.

Compare a standard fitting with a product from the ROBUS energy saving range.
Example shown below is a ROBUS Standard 50W 12V Downlight vs the 1 X 10W LED Fire Rated Downlight.

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UK Part L1 and L2 Building Regulations — Conservation of fuel and power, encompassing lighting

Learn More


PART L1A/L1B relates to lighting for domestic use. 

L1A referring to new dwellings and L1B to existing dwellings.  

At least 75% of fittings must be low energy. Reasonable provision requires either 1 energy efficient fitting per 25m² or 1 in 4 fixed luminaires.

The lamp holder used must be such that it can only accept energy efficient lamps that achieve greater than 40 lumens output per circuit Watt. Fluorescent and compact fluorescent fittings would meet this standard. Halogen and GLS lamps are highlighted in the guidelines as non compliant.

Fixed external lighting should not exceed 150W and be controlled so it automatically switches off or can only accept lamps with efficacy >40 lumens/Watt.


PART L2A/L2B refers to buildings other than dwellings. 

L2A referring to new buildings and L2B to existing buildings, with over 100m² of floor area.

PART L2A relates to new buildings other than dwellings,
with over 100m² of floor area.

A minimum average lamp efficacy of 50 lumens/circuit Watt for general lighting.

A minimum average lamp efficacy of 22 lumens/circuit Watt for display lighting.

Exceptions are emergency lighting and specialist process lighting.


It is not necessary for individual luminaires to meet 55 luminaire lumens per circuit Watt, giving the designer flexibility to use a mix of technologies that average 55 lm per circuit Watt.

Circuit Watt is the actual power consumption for the luminaire which will include lamp and  control gear if applicable or installed load. 

Lighting controls should be used to optimise available daylight and switch off lighting when  not required.
Display lighting should be in dedicated circuits that can be switched outside the displays usual function.

Find your ROBUS Rep

  • DALLAS Backlit Panel


    This great new range of extra-slim LED panels includes UGR, Non-UGR, Neutral and Cool White CCT versions. Utilising Backlight technology, it prevents…



    240W | IP20 | CCT1 | CCT2 | RGB | RGBW

    This range of dimming and colour changing (RGB/ RGBW) controllers work with the full range of ROBUS VEGAS Drivers to power the ROBUS VEGAS LED Flexi-Strip.…



    7W | 8W | WIFI | RGB | Tunable White

    This range of GLS lamps join the exciting new ROBUS CONNECT family of products. It has the latest in WIFI controllability using the ROBUS CONNECT…



    5W | 7W | B15 | B22 | E14 | E27 | 2200K

    Available in a range of base types these new Filament Connect lamps provide that great rustic look that many people associate with antique type fittings.…


  • Camera Connect

    1080p | 2-way audio | IP20 | IP65

    Used with the Robus Connect App and other Connect devices, these attractive modern looking cameras with integrated Wi-Fi, monitor, notify and record…


  • EARL LED Batten

    40W | 60W | IP20 | 1.2m | 1.5m | 1.8m | CCT selectable 3000K/4500K/6500K

    This linear LED batten is 3 Colour Temperature Selectable. Its slim attractive design looks good in any installation. It is also simple to install…


  • Sonic4 LED High Bay

    150W | IP65 | dimmable | 4000K

    This modern looking range of fittings with an “All Around” IP65 rating provide solutions for high, medium or low height lighting applications…


  • Power Bay

    100W | IP65 | 180Lm/W | 1-10V dimmable | 5000K

    This modern looking fitting has an “All Around” IP65 rating and provides solutions for high mounting height lighting applications…


  • STUDIO CCT3 Dimmable LED Downlight

    6W | 12W | 18W | 24W | CCT selectable 3000K/4000K/6500K | Dimmable | Cut out 55-100mm, 55-125mm, 55-175mm, 60-250mm

    The ROBUS STUDIO Downlight range, uses the latest SMD LED’s with Driver-On-Board technology. It is able to be either wall or ceiling mounted,…



    10W | 15W | CCT selectable 3000/4000/6500K | IP56

    This great new addition to the ROBUS GOLF family provides all the functionality of the traditional LED ROBUS GOLF, but in a slim version. It…


  • VEGAS LED Flexi-strip

    12V | 24V | 4.8W/m | 7.2W/m | 9.6W/m | 12W/m | 14.4W/m | 3000K | 4000K | RGB | RGB + 3000K | RGB + 4000K

    This range of LED flexi-strip consists of single colour warm or neutral white, RGB or RGBW strip which can be ordered by the metre.

    This is…