---
title: "18\" x 24\" Solar Flashing Reduced Speed Ahead Sign"
description: "18\" x 24\" Solar Flashing Reduced Speed Ahead Sign. Size: Rectangle 18\" x 24\", Type: Solar Powered Flashing LED Reduced Speed Ahead Sign."
url: "https://www.trafficthingz.com/products/18-x-24-solar-flashing-reduced-speed-ahead"
date_modified: "2026-10-05T16:28:48-07:00"
---

## 18" x 24" Solar Flashing Reduced Speed Ahead Sign

$899.99 – $949.99 · MUTCD R2-5A · Typically in stock

### Variants & pricing

| Sheeting Option | SKU | Price |
| --- | --- | --- |
| ENGINEER GRADE | RSA-1824-EGR | $899.99 |
| DIAMOND GRADE | RSA-1824-DMG | $949.99 |

Add-on options (configured on the product page): Configuration Option.

### Key specs

| Spec | Value |
| --- | --- |
| Type | Solar Powered Flashing LED Reduced Speed Ahead Sign |
| Battery | Lithium Battery 7.4V/4400mAh |
| Working Time | After one full charge, 5-7 consecutive days |
| Working Mode | 24/7 or Dusk to Dawn |
| Charging Time | 4-5 hours |
| Size | Rectangle 18" x 24" |
| LED Color | White |
| Sign Color | White |
| Battery Life | 3-5 Years |
| Operating Temp | -20°F to 150°F |
| Warranty | 3-year full |

### Documents

- [SIGN INSTALL INSTRUCTIONS](https://www.trafficthingz.com/docs/sign-install-instructions.pdf)
- [SIGN WARRANTY INFORMATION](https://www.trafficthingz.com/docs/sign_warranty.pdf)
- [DOWNLOAD INSTALL INSTRUCTIONS](https://www.trafficthingz.com/docs/sign_install_instructions.pdf)

### Description

This sign’s bright flashing LED lights and reflective 3M material can be seen from over 2500ft and makes for a great addition for safety pertaining traffic right of way. Made with an aluminum alloy board and solar board to MUTCD (R2-5A) specifications.

*STANDARD HARDWARE: FITS 3" to 4" DIAMETER POSTS*

JUNCTION BOX (BATTERY HOUSING)

- STANDARD:5W /12V Solar Panel, 7.4V / 4400mAH Battery
- UPGRADED: 8W / 12V Solar Panel, 7.4V / 6600mAH Battery (Longer Battery Life)

MUTCD GUIDELINES:

The RSA-1824 adheres to the MUTCD Standards found within MUTCD Guidelines Section 2A.07 for Retroreflective and Illumination

o Illumination of a sign by Light emitting diodes (LEDs)

o Sign Element to be Illuminated: (1) Symbol or word message (2) Portions of the Sign border

o LED’s are placed within 1 border unit of border and within words

o LED’s are red in color

o LED’s are within ¼” in width

o LED’s flashing at a rate of 50 times per minute

o Background of sign is standard 3M reflective engineering grade material

DOWNLOAD INSTALL INSTRUCTIONS

Product page: https://www.trafficthingz.com/products/18-x-24-solar-flashing-reduced-speed-ahead
Request a quote: https://www.trafficthingz.com/contact?product=18-x-24-solar-flashing-reduced-speed-ahead