2 x 849mm FHE 21 21w T5 Fluorescent Tube 830 3000k Standard White (SLI 0002763) 5410288027630 | eBay
Bulbrite 21W - T5 - Mini Bi-Pin Base - Soft White Light Color 3500K - 24,000Hr - Neutral White - Linear Fluorescent Light Bulbs - Pack of 20 Bulbs - Amazon.com