The Osram QTi DALI 4x14-24 is a Dali dimmable ballast to run 4 x 14w or 24w T5 Tubes. This osram intelligent ballast can be used on touch dim, corridor function or smart grids using Dali dimming. These ballasts have an average life of 100,000 hours, offer flicker free light, have an automatic safety shutdown at lamp failure, automatic restart after lamp replacement and are suitable for emergency lighting. Osram part number: 4008321070036