What this product is

Sitio KSR5403/EM is a 5ft single 24W 110V LED anti corrosive batten with 3 hour maintained emergency operation. It sits in KSR’s Site Light Series, a range designed as specialised 110V site lighting for domestic, commercial or industrial applications. This model combines the longer 5ft single-body format with emergency functionality, giving specifiers a fitting that can serve both normal site lighting needs and maintained emergency requirements in one product.

The value of this exact version is that it keeps the longer single-batten format of KSR5403 but upgrades it for emergency use. That is particularly useful where site areas need a more substantial physical fitting than the 2ft or 4ft versions, but still need emergency capability built into the same luminaire family.

Key verified specifications

• 24W LED light source
• 4000K colour temperature
• 3145 lumens in normal operation
• 3 hour maintained emergency
• 326 lumens in emergency mode
• 110V supply only
• IP65 protection
• CRI above 80
• 120 degree beam angle
• 3 year warranty

Those details give KSR5403/EM a clear and useful position in the range. It is the emergency-enabled companion to the 5ft single standard model, not a separate unrelated product. That keeps specification simpler for buyers working across mixed standard and emergency temporary lighting layouts.

Construction and site suitability

KSR specifies a polycarbonate body, opal polycarbonate diffuser and 304 stainless steel clips. Combined with IP65 protection, that supports the fitting’s role in more demanding temporary environments where dust, moisture and general site wear are likely. The emergency installation sheet also states that the luminaire is suitable for indoor or exterior use, which is a practical point for site planning.

KSR also includes emergency battery guidance that is worth noting. After temporary site installation, emergency fittings should have had a 24 hour 110V supply and the battery unplugged before decommissioning so the battery remains fully charged and ready for the next installation. That is specific, site-useful information rather than generic emergency lighting language.

Why choose the 5ft single emergency version

The 5ft single format suits longer temporary runs and broader areas where a compact fitting would feel undersized. At 1485 x 85 x 80mm, KSR5403/EM provides a longer single-batten body while keeping a neater format than the twin 5ft version elsewhere in the family. This can be the right compromise where longer coverage is needed but a twin-body product is not necessary.

It is also the correct choice where emergency operation is part of the brief. If the site only needs standard lighting, KSR5403 is the simpler non-emergency match. If the site needs maintained emergency support in the same longer single-body format, KSR5403/EM is the appropriate product.

Why buy this exact version

KSR5403/EM combines the key benefits that matter in temporary site emergency lighting: a longer 5ft single-body format, verified 110V-only operation, IP65 protection, 24W LED output, 4000K light and 3 hour maintained emergency backup. It is a focused solution for longer temporary areas that need emergency resilience without moving into a twin fitting. For specifiers who want the 5ft single Sitio anti corrosive format and need the emergency version, this is the right model to choose.

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