Using this Barco projector lens is easy. First, make sure your projector (Barco RLM - W6 or RLM - W8) is turned off. Then, carefully remove the old lens and replace it with this one. When handling the lens, avoid touching the glass surface with your fingers as it can leave smudges. After installation, turn on the projector and adjust the settings as needed. For maintenance, use a soft, dry cloth to gently clean the lens regularly. If there are stubborn stains, you can use a small amount of lens - cleaning solution. Keep the lens in a dry and dust - free place when not in use.