What types of environments typically require an IP69K and IK10 high bay?
This rating set is specified for washdown areas, food and beverage processing zones, cold-storage support spaces, and industrial rooms where fixtures are exposed to high-pressure cleaning, frequent moisture, and the risk of impact from carts, hoses, or equipment.
What does IP69K indicate in practical terms for a high bay luminaire?
IP69K indicates the luminaire is designed to resist high-pressure, high-temperature washdown ingress at the housing and lens interfaces. For facilities that sanitize with spray equipment, the IP69K rating is used as a baseline specification in addition to wet-location listing.
How does IK10 relate to fixture survivability in active production areas?
IK10 is an impact rating used where incidental contact is expected. In high-bay applications, it addresses lens and housing resistance to mechanical impact from tools, ladders, and mobile equipment operating below the fixture.
What is the luminous efficacy of this 115W, 16,100-lumen configuration?
16,100 lumens divided by 115W calculates to 140.0 lm/W. For layout decisions, use the photometric file to confirm delivered foot-candles after mounting height, spacing, and surface reflectances are applied.
How does a 110° beam angle perform in open washdown rooms?
A 110° distribution supports broad coverage with overlap between fixtures, which helps maintain uniformity across open floor areas and reduces concentrated brightness directly under each luminaire. In washdown spaces, that uniformity is often prioritized for safety and visibility around drains, curbs, and equipment.
Why specify a polycarbonate prismatic lens instead of a flat diffuser?
A prismatic optic redirects and spreads light to support uniformity while managing high-angle brightness. Polycarbonate is also commonly specified in washdown and industrial settings where impact resistance is required and glass breakage is a contamination risk.
What does CRI 83 change compared with a standard CRI 80 high bay?
CRI 83 indicates slightly higher color rendering than the common CRI 80 baseline, which can help with visual discrimination of labels, wire colors, and product markings. For process-critical evaluation, verify any project requirements for specific test values beyond general CRI.
When is 4000K selected versus 5000K in wet or washdown facilities?
4000K is commonly specified where teams work in the space for long shifts and visual comfort is a priority. 5000K is specified where higher contrast supports inspection, sanitation verification, and camera monitoring consistency.
How is 0–10V dimming applied in wet-location industrial areas?
0–10V dimming supports occupancy-based control, scheduled reductions during non-production hours, and commissioning trim to align installed light levels with the lighting schedule. Any controls hardware used in the space should also be specified for the environmental conditions of the installation.
What does a -40°F minimum operating temperature support?
A -40°F minimum indicates the driver and LED system are rated for cold-start performance in very low ambient conditions. This is relevant for freezer-adjacent zones, unconditioned cold climates, and facilities that experience prolonged low-temperature operation.
How do wet-location listing and IP69K differ, and why are both listed here?
Wet-location listing addresses suitability for direct water exposure under the applicable safety standard. IP69K addresses ingress resistance under high-pressure washdown testing. In washdown specifications, both are commonly required: the safety listing for code compliance and the IP rating for environmental performance.
What does DLC Premium listing typically support for this fixture class?
DLC Premium listing is commonly referenced for utility rebate qualification and for documentation requiring third-party verification of luminaire performance. Confirm local program requirements, since eligibility rules and required paperwork vary by utility territory.
How do 100,000-hour rated life and a 10-year limited warranty factor into long-cycle maintenance planning?
For lifecycle planning, document the selected CCT by zone and retain the submittal package so replacements match color and control behavior. Review the 10-year limited warranty terms for coverage details related to drivers, LED components, and any documentation required for claims.
