This single-stick Tridonic battery has 1 Lithium Iron Phosphate Cell (LiFePO4) and is designed specifically for use in emergency lighting units. It is therefore able to withstand high temperatures. This product has been designed to last for 8 years and comes with a 3 year guarantee from the point of delivery. This product uses environmentally friendly technology and has a high energy density. It has safety features incorporated and a simple plug-in connection system. This product is also sold with polycarbonate fixing caps.