PLT fluorescent tube 15W/18W/26W/36W/40W Lifetime: 8000hrs PLT fluorescent lamp PLT 2PIN BASE PLT 13W: 850lumens, GX24d-1PLT 18W: 1200lumens, GX24d-1PLT 26W: 1600lumens, GX24d-3 PLT 4PIN BASE PLT 13W: 850lumens, GX24q-1PLT 18W: 1200lumens, GX24q-2PLT 26W: 1600lumens, GX24q-3PLT 32W: 2030lumens, GX24q-3PLT 42W: 3000lumens, GX24q-4PLT 57W: 4000lumens, GX24q-5