30x30" MUTCD LED Warning Sign - Diamond Shape (All W-Series Legends Available)

Built to the same standard as our Pedestrian Crossing Sign (W11-2) when it comes to materials, electronics, and solar performance. The difference here is the face: we finish this LED diamond blank with any MUTCD-approved reflective sheeting and any W-Series legend per your order.

📄 Download our Municipal Buyer Brochure

Why Choose This LED W-Series Diamond?

High Visibility

• Cree LEDs provide bright, uniform flashing for driver attention.
• 3M Diamond Grade reflective sheeting for superior day and night visibility.

Solar Powered, Long Runtime

• Premium lithium battery with integrated BMS for stable power and long life.
• Up to 55 days of operation without sunlight after a full charge.

Built To Last

• Engineered aluminum housing and weather-resistant components.
• Upgraded control board with resistor-regulated power and plug-in quick connectors for easy service.

Easy Installation

• Plug-and-play wiring with keyed connectors.
• Mounts to standard square posts or round poles using typical hardware.

W-Series Coverage

We manufacture any MUTCD W-Series legend on a 30x30 diamond and apply the correct sheeting color per MUTCD guidance.

• W1 - Alignment and Curves
• W2 - Intersections and Junctions
• W3 - Advance Warnings (Stop Ahead, Yield Ahead, Signal Ahead)
• W4 - Lane and Merge Warnings
• W5 - Road Narrowing and Bridge Width
• W6 - Hills and Grades
• W7 - Surface Condition Warnings
• W8 - Pavement and Work-area Conditions
• W9 - Passing Restrictions
• W10 - Railroad Advance Warning
• W11 - Crossing Warnings and Shared-Use (deer, truck, bicycle, animal, farm vehicle, golf cart, and more)
• W12–W25 - Clearance, Detour, Work Zone, and Specialty Warnings

Note: S-Series School Zone pentagons are not part of this product. Order those on our school zone page.

Key Features

• MUTCD compliant for official roadway use.
• 3M Diamond Grade Cubed reflective sheeting with anti-graffiti protective film.
• Cree LEDs for high-intensity flashing.
• 100% solar powered, no trenching or external power required.
• Available in 30" (standard road size).
• 📄 Product Spec Sheet

Specifications

• Sign Type: 30x30 MUTCD W-Series diamond with integrated LED border
• Finish: Your selected W-Series legend with MUTCD-approved sheeting color (yellow, fluorescent yellow-green, orange, or white)
• Battery Pack: Premium lithium with BMS, 12V
• Runtime: Up to 55 days of operation without sunlight after full charge
• Operating Temperature: -50°F to 125°F
• Mounting: Standard square post or round pole
• Reflective Material: 3M Diamond Grade with anti-graffiti film
• Manufactured in: USA - Muskego, Wisconsin

Warranty & Support

• Three-year warranty covering battery, solar panel, LEDs, and controller workmanship.
• Quarterly inspection program available for municipalities and campuses.
• Fast support 7 days a week.

Compare the Market

Solar LED warning signs vary in performance and build quality. Here is how ALC compares:

Pricing: Starting at $825 plus shipping.
Standard pricing available for municipal, county, and DOT purchasing programs.

Reminder: If you did not enter a W-Series code above, you can include it here or email details to sales@alertlightingco.com.

Contact Us

• Questions or bulk orders: sales@alertlightingco.com or (800) 956-8213

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