Phoebe LED Photius Integrated CCT Linear Batten 4ft Standard 40W Adjustable colour temperature in this integrated LED batten is possible thanks to CCT technology. You can choose between daylight, cool & warm white light. This lamp has a superb design & height of just 36mm, making it a perfect lighting solution for modern offices & contemporary commercial spaces. A special feature of this Photius Integrated CCT Emergency is built-in emergency pack with 3-hour emergency battery & test function.