Installation Instructions for switch start circuits only. Isolate each fitting before any work can be carried out. Remove existing T8 lamp from the fitting. Remove the existing starter. Insert the inline fuse protector provided in place of old starter. Attach both the ESU (large) and Bridge (small) adapters to the T5 lamp at ether end. Insert the T5 lamp complete with previously attached adapters into the lamp holder. Where possible insert with the ESU (large) adapter nearest the starter. Re-connect the mains voltage supply. Switch on.