Amazon.com.au:Customer reviews: 4 Pack of 2Ft 14W T5 LED Tube w Sun 6500K and Over 2.0 PPF/180 Lumen/W, Perfect Replace T5 F24W Tubes Directly Work w Previous Ballast to get EZ LightSystemUpgrading & 50% EnergySaving & FastGrowing!
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Bought these instead of buying regular tube bulbs as I really didn’t want to have to replace them in about 1.5 years. So far they being used to light and grow plants in an aquarium and doing just fine. Definitely bright so idk why people say they aren’t. Are they as bright as fixtures with leds built in idk.