F8W:
8-watt, 4100K, 1/2″ x 13-1/2″ long
570 lumens, 10,000 hours (ARL)

F12W:
12-watt, 4100K, 1/2″ x 17-1/2″ long
940 lumens, 10,000 hours (ARL)

F20W: 
20-watt, 4100K, 1/2″ x 21″ long
1,550 lumens, 10,000 hours (ARL)

F22W:
22-watt, 4100K, 1/2″ x 29″ long
1,750 lumens, 10,000 hours (ARL)

F22W:
26-watt, 4100K, 1/2″ x 40-1/4″ long
2000 lumens, 10,000 hours (ARL)

F28W:
28-watt, 4100K, 1/2″ x 46-1/4″ long
2,305 lumens, 10,000 hours (ARL)