Save electricity bill. LED tube lights save over 50% on electricity bill. 2. Low maintain cost. Lifespan of LED tube lights are much longer. High quality LED tube can get 5 years warranty. Besides, if you use ballast bypass solution, you do not change ballast either. 3. Rebates make LED retrofit free or low product cost. LED tube light with DLC list can get rebates in many utility providers. Sometimes, rebates are higher that product cost. Click to check rebates of your local utility providers here. 4. Eco-friendly. Fluorescent tube contains mercury, but LED tube is absolutely eco-friendly.