Open Loop Multiple Zone DLM photosensor w/extended tube
LMLS-500-L
Wattstopper
Bazaarvoice SAP Hybris Integration Version 2.8.1
The LMLS-500 is an open loop, multi-zone photosensor that measures the daylight contribution in order to automatically switch or dim up to three zones of lighting. It is part of a Digital Lighting Management (DLM) system and sends light level signals to control loads connected to DLM on/off or dimming room controllers.
Depth
2.25 in
- 1 in
- 2.25 in
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Features
- Digital Lighting Management components plug together on a free-topology Cat 5e DLM local network
- Test mode override of programmed time delay allows easy verification of selected settings
- Load status verification allows confirmation and testing of controlled load
- Infrared (IR) transceiver for wireless configuration and control
- Compatible with DLM wall switches for manual override, if desired
- LED status indicators
- Mounting options for toplit or sidelit applications
Specifications
General Info
| Color | White | ||
| Product Series | LMLS | ||
| Type | Sensor | ||
| Finish | Glossy | ||
| Application Sector | Commercial | ||
| Product Line | Wattstopper | ||
| Country Of Origin | China | ||
| Features | Fits Ceiling Tiles from 5/8-1.25 in, Up to 3 Zones | ||
| Installation Location | Ceiling | ||
| Warranty Type | 5-Year | ||
| Standard | RoHS, UL, FCC part 15 | ||
| UPC Number | 754182932160 |
Dimensions
| Product Depth US | 1.5 in | ||
| Product Height US | 4.0 in | ||
| Product Volume US | 36.1 cu in | ||
| Product Width US | 1.5 in | ||
| Product Weight US | 0.1 lb |
Additional Information
| RoHS Compliant | Yes | This product meets the material restrictions of Article 4 of the RoHS Directive (2011/65/EU), including Commission Delegated Directive 2015/863. |
Technical Information
| Current Draw | 7 mA | ||
| Topology | Free Topology | ||
| Connector Type | RJ-45 | ||
| Compatibility | DLM Wired, Infrared Wireless | ||
| Control Algorithm | Open Loop | ||
| Has Battery | No | ||
| Indoor/Outdoor | Indoor | ||
| Input Voltage | 24 VDC | ||
| Mounting Type | 0.9 in Knockout | ||
| Operating Temperature | 32°-131°F | ||
| Operating Temperature Max | 131 °F | ||
| Operating Temperature Min | 32 °F | ||
| Operating Humidity | 5-95% RH (Non-Condensing) | ||
| Sensing Range | 1-1500 fc | ||
| Sensor Type | Daylight | ||
| Sensor Technology | Photosensor | ||
| Sensor Coverage Pattern | 60 ° | ||
| Storage Temperature | 23° - 140° F |
Resources
Installation Instructions
CAD Drawings
White Papers & Tech Bulletins
Reviews
Bazaarvoice SAP Hybris Integration Version 2.8.1
Questions & Answers
Is there an option in the configuration that allows the photocell to dim the fixture but not turn the fixture off (like set a minimum dimming level above 0%)? Customers think the fixture is broken due to the photocell keeping the fixture off.
When configured for Dimming Mode, the LMLS-500 will not switch the fixture off—it only dims the light output to maintain the desired light level.
DLM LMLS photosensors can be configured in four modes: Switched, Bi-Level, Tri-Level, or Dimmed.
🔹 Switched – Turns lights fully on or off based on daylight levels.
🔹 Bi-Level – Provides two output levels (high/low), often occupancy-based.
🔹 Tri-Level – Adds an “off” state after an extended unoccupied period.
🔹 Dimmed (Continuous Dimming) – Continuously adjusts light output to maintain a target light level. When daylight increases, the lights dim; when daylight decreases, they brighten. The minimum dim level can be configured so lights never turn completely off.
If lights are turning off unexpectedly, confirm the device is set to Dimmed Mode.
Please contact Wattstopper Technical Support for further assistance if needed.
Date published: 2025-10-21
Does this come in black or could it be painted?
It can be painted, but do not get any paint on the lens.
Date published: 2023-12-06
Bazaarvoice SAP Hybris Integration Version 2.8.1