The Ingress Protection or IP rating is an important consideration during the selection of LED lighting products for any project. The IP rating reflects the suitability of the light fitting to specific environmental conditions in indoor and outdoor installations. The first digit of an IP rating refers to the level of protection against solids, including dust particles, mosquitoes, moths, or flies. The second digit indicates the protection level against liquid with the number also providing guidance when it comes to on-site cleaning routines using sprays or water jets. While dust resistance levels progress from 0 to 6, the water resistance rating is provided in a 0 to 9 range. In some cases, an X may be interchanged with one of the digits if it is not relevant to the requirements, for instance, IP4X. An IP rating does not correlate to vandalism or other physical protection from impact; a separate classification called IK rating is used for this purpose. Most indoor lighting products are not designed for water exposure as risk from water damage is low compared to outdoor lighting. While dust or insects are not likely to damage the lights, a dust cover will impact the quality of lig...