WattStopper LMLS-500 DLM Multi...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$813.53
WattStopper LMLS-500 DLM Open Loop Multi Zone Dimming or On/Off Photosensor

WattStopper LMLS-500 DLM Multi Zone Dimming Photosensor with Digital Lighting Management

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Model: LMLS-500
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WattStopper LMLS-500 DLM Multi Zone Dimming Photosensor with Digital Lighting Management

Professional Open Loop Multi Zone Lighting Control with Advanced Digital Management

The WattStopper LMLS-500 DLM Multi Zone Dimming Photosensor delivers professional lighting control with advanced digital lighting management capabilities. This open loop photosensor provides precise dimming or on/off control across multiple zones, featuring load status verification and infrared wireless configuration for reliable commercial and institutional lighting applications.

Professional Features & Benefits

  • Load Status Verification: Enables confirmation and testing of controlled loads for reliable system operation and maintenance
  • Digital Lighting Management Network: Components plug together on free-topology Cat 5e DLM local network for flexible installation and scalability
  • Infrared Wireless Configuration: IR transceiver allows convenient wireless setup and control without physical access to the unit
  • Test Mode Override: Programmed time delay override enables easy verification of selected settings during commissioning
  • DLM Wall Switch Compatibility: Integrates with DLM wall switches for manual override capability when desired
  • Flexible Mounting Options: Supports both toplit and sidelit applications for versatile installation requirements
  • LED Status Indicators: Visual feedback confirms operational status and system performance

Technical Specifications

  • Country Of Origin: China
  • Designlights Consortium Qualified System: Yes
  • Product Depth Us: 2.48 in
  • Product Environmental Profile: Yes
  • Product Height Us: 4.8 in
  • Product Volume Us: 36.06 cu in
  • Product Weight Us: 0.25 lb
  • Product Width Us: 3.0 in

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial Facilities
  • Multi-Zone Lighting Systems
  • Energy Management Projects

Smart Load Management Advantage

The DLM Digital Lighting Management system provides professional-grade load control with Cat 5e network connectivity, enabling sophisticated multi-zone dimming and on/off control. The open loop design with load status verification ensures reliable performance while the free-topology network architecture offers installation flexibility and system scalability for complex lighting management applications.

Why Choose WattStopper Quality?

WattStopper delivers proven reliability in professional lighting control with DesignLights Consortium qualification and comprehensive environmental profiling. The compact 0.25 lb design with LED status indicators and IR wireless configuration ensures dependable operation and convenient maintenance for demanding commercial applications.

Manufacturer Resources

Product Specs

Country Of Origin:
China
Designlights Consortium Qualified System:
Yes
Product Depth Us:
2.48 in
Product Environmental Profile:
Yes
Product Height Us:
4.8 in
Product Volume Us:
36.06 cu in
Product Weight Us:
0.25 lb
Product Width Us:
3.0 in

WattStopper LMLS-500 – Frequently Asked Questions

1) How does the WattStopper LMLS-500 photosensor wire back to the panel or other controls?
The LMLS-500 doesn't wire like a legacy 0-10V sensor. It plugs into the DLM local network, a free-topology Cat 5e run where the DLM components plug together, so there's no home-run analog control wiring to pull. If your job is spec'd around conventional 0-10V class 2 control wire and no DLM room controller, this is the wrong sensor for that design.
2) Can the LMLS-500 daylight sensor control more than one row of lights independently?
Yes, that's the point of it. The LMLS-500 is a multi-zone open loop photosensor, so it drives separate zones, typically the daylight row nearest the glass and the rows further in, from a single sensor. Each zone can be dimmed or switched on/off rather than all loads tracking together.
3) Open loop vs closed loop photosensor: which one do I need for a daylit office?
Open loop, which is what the LMLS-500 is, aims at the daylight source rather than the task surface. It reads incoming daylight only and doesn't see the electric light it controls, which is why one of them can drive several zones at different setpoints. A closed loop sensor reads the total light on the workplane below it and is the choice for a single small zone under one fixture. Perimeter glass with two or three rows stepping back from the window is the open loop case.
4) How do you commission and adjust the WattStopper LMLS-500 once it's mounted on a high ceiling?
An IR transceiver on board handles it. Setup is done wirelessly over infrared, so a sensor mounted out of reach doesn't need to be taken down or physically accessed to configure. There's also a test mode with a programmed time delay override, so you can trigger the sensor and watch the zones respond instead of waiting out the normal delay, plus LED status indicators for confirming operation on the spot.
5) Will the LMLS-500 mount in a skylight application or does it only work on windows?
Both. The sensor supports toplit and sidelit applications, so it works aimed at a skylight or clerestory as well as at vertical glazing on a perimeter wall.
6) Can occupants still override the lights manually if a daylight sensor is controlling them?
Yes. The LMLS-500 works alongside DLM wall switches, which give occupants a manual override of the daylight harvesting when they want it. You order the switch separately, the photosensor itself is the sensing and control element only.
7) Does the WattStopper LMLS-500 count toward DesignLights Consortium requirements on a utility rebate project?
The LMLS-500 is part of a DesignLights Consortium qualified system, which is the line most utility networked lighting control incentive programs look for. It also carries a published product environmental profile, which matters if you're chasing documentation on a LEED or similar submittal.
8) How big is the LMLS-500 photosensor and how much room do I need above the ceiling for it?
It measures 4.8 x 3.0 x 2.48 inches and weighs a quarter pound, about 36 cubic inches of total volume. Light enough that mounting is not a structural concern, but plan the 2.48 inch dimension into your plenum or bracket clearance when locating it near glazing.
9) How do I verify the lights actually responded after installing a daylight sensor, without walking the whole floor?
Load status verification is built into the LMLS-500. It confirms and tests the controlled loads so the system reports back what the zones are doing, which is what you use at commissioning and later during maintenance calls when a tenant says a row isn't dimming. Combined with the test mode override and the LED indicators, you can prove out settings at the sensor.
10) Is the WattStopper LMLS-500 a single part number or are there options to specify?
One configuration, ordered as LMLS-500. There's no handing, color, or range suffix to pick, the zoning and setpoints are all set in the field over the IR configuration rather than chosen at order time.
11) Where is the WattStopper LMLS-500 made?
Country of origin is China. Worth knowing up front on government, public school, or other work carrying domestic sourcing language in the spec.
How fast can I get the WattStopper LMLS-500 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the WattStopper LMLS-500 come with a warranty?
Absolutely. The WattStopper LMLS-500 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the WattStopper LMLS-500?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the WattStopper LMLS-500 from ZenSupply?
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