Aquarium t5 wiring diagram - d el240ltt 120 277hf 120 to 277 volts 2g11 l s operates 1 or 2 f36ltt 39bx f40ltt el240ltt 120 277hf guide to fluorescent light fixtures and how to fix them electrical question my fluorescent kitchen light was not ing on quickly if at all i replaced the ballast which fixed the problem for about 3 days now it s back to not turning on delegation strategies for the nclex prioritization for the nclex infection control for the nclex free resources for the nclex free nclex quizzes for the nclex free nclex exams for the nclex failed the nclex help is here back to sam s f l faq table of contents fluorescent fixture wiring diagrams wiring for preheat fluorescent fixtures the following is the circuit diagram for a typical preheat l one that uses a starter or starting switch