Philips 34-inch T5 Fluorescent Tube - 21W | 3000K | G5 | Pack of 40

GTA only: Available for sale and delivery within the Greater Toronto Area only.

The Philips 34 inch T5 Fluorescent Tube, model F21T5/830/ALTO (639424/230813), is specified at 21W, 3000K. In a troffer or strip fixture with sockets for T5 lamps, this model can be considered for the matching lamp position. A fixture with integral LED boards requires a different replacement approach. For a warmer visual tone in the work area, choose the 3000K version; compare lumen output separately when deciding how much light is needed. Allow for 40 units per pack when ordering this model.

The 34-inch format identifies the lamp position; its 21W rating must also suit the selected operating arrangement. The G5 base must correspond to the installed lampholders. The ballast and socket arrangement must support this model as a fluorescent lamp; matching the physical length alone is insufficient for ballast selection.

Buying tip: Check the existing socket for the G5 base and compare the available clearance with the lamp dimensions.