Can A T5 Bulb Fit In A T4 Fixture?
Can A T5 Bulb Fit In A T4 Fixture? Sorry to say, but they are not interchangeable. They require different ballasts to fire the bulbs. A T4 12w ballast will not fire a 20w HO T5 bulb. What is the difference between a T4 and a T5 bulb? T4 vs T5 – Which Is Which … Continue reading Can A T5 Bulb Fit In A T4 Fixture?
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