Retrofit kit for Jubilee-XL T5 luminaires. The Jubilee-XL Retrofit kit is a retrofit solution for existing Thorlux Jubilee-XL fluorescent T5 surface luminaires, extending the life of the existing luminaire and providing energy, carbon and installation cost savings. Your original Jubilee-XL can be upgraded to the latest LED technology and lighting controls to enhance functionality and flexibility without the need for additional wiring whilst maintaining low glare compliance.