Regulations:
Chapter II-2, Regulation 41-1 & 41-2, requires that ships carrying more than 36 passengers shall be fitted with Low Location Lighting if built after 1st October 1994. If built before 1st October 1994, LLL should have been fitted by 1st October 1997. Resolution A.752(18) details system requirements and testing procedures. All escape routes, including stairs, must be marked by LLL. Where a photoluminescent material is used this must be a minimum of 75mm wide, positioned no higher than 300mm from deck level. Where stairs or corridors are more than 2m wide, LLL strips should be provided on both sides. Stairs should have the top and bottom clearly identified. 'Dead end' passages should be marked with arrows spaced no more than 1m apart to direct people away from the dead end. The photoluminescent strip should be run up vertically to the handle of each door which forms part of the escape route. 'Exit' signs should be provided at each exit, located on the same side as the door handle. Fire and watertight doors should be marked to show how the door opens. All photoluminescent material must produce at least 15 mcd/m2, 10 mins. after removal of external light sources, and at least 2 mcd/m2 at 60 mins, when tested insitu. The installer should ensure that sufficient light is available to activate the photoluminescent material to attain this performance. Systems should have their luminescence tested at least once every 5 years. 

Strontium Aluminate Self Adhesive Tape LLL System:
This the simplest and most cost effective system to install requiring only the application of the tape to the bulkhead and the positioning of LLL signs at the appropriate places. The tape will exceed the performance required by IMO in just 15 Lux of ambient light. At the time of writing this new material is undergoing further testing for Classification Approval.

Strontium Aluminate Rigid Strip LLL System:
This system comprises of an aluminum carrier extrusion and rigid photoluminescent insert panels, offering a quick and easy installation combined with rugged and durable quality. The carrier offers a 75mm visible width of photoluminescent material. The photoluminescent performance of the rigid panels is certified by Lloyds Register as exceeding IMO requirements when charged with less than 30 Lux from a flourescent source. Installation is simple. The carrier is fixed to the bulkhead by countersunk screws, the heads being covered by the photoluminescent panels which are simply slipped into the extrusion. Internal and external corners, and drops up and down stairways, are easily made by mitreing the extrusion and cutting the photoluminescent panels to suit. LLL signs below should be used to give direction indication.  End stops for terminating a run of panels are also available.

Low Location Lighting Signs:
A range of signs sized to fit the system above. The signs are printed on clear, heavy duty vinyl which allows the photoluminescent LLL strip to shine through, highlighting the printed symbol. The signs are supplied only in packs of ten.