4FT LED Light Bulbs, T8 4FT LED Tube Lights 28W 5000K Daylight White, 3360 Lumen | eBay
Amazon.com: 20 Pack of 4Ft 28W T5 LED Tube w Sun White 6500K & Over 2.0 PPF/180 Lumen/W, Perfect Replace T5 F54W Directly Work w Previous Ballast to get EZ SystemUpgrading &