Philips® 28w T5 Fluorescent Linear Bulb (3500k) (40-Pack) | HD Supply
F28WT5835EC0 F28W/T5/835/ECO Ge Current, A Daintree Company 28W T5 85 Cri 3500K Eco Fluorescent Lamp
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 &