Test Strip Image preview Crop Image File Details MIME Type: Raster: Size: Color Mode: DPI: Height: Width: $15.00 Maintain original aspect ratio PPI Notification This size results in a PPI value of . Not to worry! A technician will review your file to make sure it's ok. Crop Notification Please crop your image to the requested print size, or select a different print size. Not sure why you're seeing this? Click here to read our FAQ on aspect ratios and print sizes. Test Strip quantity Add to cart Have questions or need help with your order? Email studio@lightsourcesf.com.