Lamp Fail - 900 series units
900 series lamps are not user replaceable. Units must be returned to an X-Rite Factory Authorized Repair Center where flat-rate repair charges will apply.
An exception to the above is the 918. With this instrument, the customer may replace the entire optics subassembly. Below are listed the assorted part numbers. Again please check the retail price list for current pricing information.
The part numbers for 918 optics are:
| Model | Aperture Size | Part Nr. |
| 918F | 3.4mm | 918F-35-01 |
| 918FS | 1.7mm | 918FS-35-01 |
| 918FL | 6.8mm | 918FL-35-01 |
