What this product is

Sitio KSR5400/EM is a 2ft 19W 110V LED anti corrosive batten with maintained emergency operation. It belongs to KSR’s Site Light Series, which is designed as specialised 110V site lighting for domestic, commercial or industrial applications. In this exact version, the compact 2ft body is combined with 3 hour maintained emergency functionality, giving specifiers an option that supports both normal site lighting and emergency operation from the same fitting.

That is useful on temporary or evolving sites where the smallest body size in the range is preferred, but a standard-only fitting would not meet the brief. The 2ft size keeps the footprint manageable in tighter spaces, while the emergency pack adds a more resilient lighting option for routes and areas that cannot rely solely on standard luminaires.

Key verified specifications

• 19W LED light source
• 4000K colour temperature
• 2475 lumens in normal operation
• 3 hour maintained emergency
• 110V supply only
• IP65 protection
• CRI above 80
• 120 degree beam angle
• 3 year warranty
• L70 rated life of 40,000 hours

KSR’s product page also states emergency light output in EM mode and confirms the model as the emergency option within the 2ft Sitio anti corrosive range. That makes the distinction from KSR5400 clear. The core fitting format stays the same, but the emergency function changes where the product is most appropriate.

Construction and site use

KSR specifies a polycarbonate body, opal polycarbonate diffuser and 304 stainless steel clips. IP65 protection helps the fitting suit indoor or exterior use in tougher temporary environments, while the anti corrosive construction makes it a more appropriate site fitting than a standard indoor batten. This is especially relevant where dust, moisture and general site wear are likely to be part of the installation context.

The emergency installation sheet adds practical commissioning guidance that matters in real use. KSR states that, after temporary site installation, any emergency fitting should have had a 24 hour 110V supply and the battery unplugged prior to decommissioning of the site, so the batteries are fully charged and ready for the next installation. That reinforces that this is a product designed with temporary site deployment in mind rather than a generic emergency batten repurposed for site work.

Why the 2ft emergency version matters

KSR5400/EM is the compact emergency option in this family. Its 650 x 105 x 75mm body helps where space is limited, but the emergency feature means it can cover more demanding briefs than the standard KSR5400. For buyers, the decision is straightforward. Choose KSR5400 if you only need standard 110V anti corrosive lighting. Choose KSR5400/EM if the same compact form factor is needed with maintained emergency operation.

The 2ft variant also benefits from the accessory path that supports the 2ft Sitio models. KSR5407 and KSR5408 are designed for the 2ft anti corrosive versions only, which gives this compact emergency model a useful route into framed temporary setups with 110V sockets.

Why buy this exact version

KSR5400/EM is a practical specification choice because it combines three things that are often needed together on temporary works: compact size, anti corrosive protection and maintained emergency operation. The verified 110V-only format, 3 year warranty, IP65 rating, polycarbonate construction and emergency function make it a focused option for smaller site areas that still need emergency support. It gives you the same compact Sitio body concept as the standard 2ft unit, but with a stronger operational brief.

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