Make certain you have read the 3M Company Closed SINGLET Lens FXL Lamp Changer 4000 Lumens Fold Down Post manual thoroughly before attempting the 3M Company Closed SINGLET Lens FXL Lamp Changer 4000 Lumens Fold Down Post bulb replacement on your 3M Company Closed SINGLET Lens FXL Lamp Changer 4000 Lumens Fold Down Post. Without touching the surface of the 3M Company Closed SINGLET Lens FXL Lamp Changer 4000 Lumens Fold Down Post lens, remove the lens tube and set it aside. Write down the number from inside the tube's inner lip for the purpose of make, model or serial number for any future need to buy 3M Company Closed SINGLET Lens FXL Lamp Changer 4000 Lumens Fold Down Post replacement parts. Your bulb should be sitting just beyond the opening of the 3M Company Closed SINGLET Lens FXL Lamp Changer 4000 Lumens Fold Down Post body. Reach in with two fingers and disconnect the 3M Company Closed SINGLET Lens FXL Lamp Changer 4000 Lumens Fold Down Post bulb. Reverse these steps to re-assemble your 3M Company Closed SINGLET Lens FXL Lamp Changer 4000 Lumens Fold Down Post. This concludes the 3M Company Closed SINGLET Lens FXL Lamp Changer 4000 Lumens Fold Down Post review - be sure to read the entire 3M Company Closed SINGLET Lens FXL Lamp Changer 4000 Lumens Fold Down Post manual.