Whelen L21HAP Amber Super-LED® Beacon | High-Dome Permanent Mount — UnitedBuilt Equipment Skip to content
Quality Water Truck Systems, Tanks & Parts Since 1947
Quality Water Truck Systems, Tanks & Parts Since 1947
Beacon Light, Super-LED® Beacon, High Dome, Permanent (Amber), Whelen L21HAP - UnitedBuilt Equipment

Beacon Light, Super-LED® Beacon, High Dome, Permanent (Amber), Whelen L21HAP

SKU 0012620
Brand Whelen
Availability:
4 in stock | Available on backorder
Save 24% Save 24%
$303.00
$303.00 - $303.00
$303.00
$230.00
$230.00 - $230.00
$230.00

Product Images

Images are for representation only and may differ from the actual product.

The Whelen L21HAP L21 Series Super-LED® amber beacon light is a high-dome warning beacon designed to provide high-intensity 360-degree warning visibility for work trucks, service vehicles, construction equipment, municipal fleets, water trucks, and other vehicles operating in demanding jobsite or roadside environments.

This L21 Series beacon uses Whelen Super-LED® technology with SmartLED® control, Scan-Lock™ flash pattern control, and Sync capability for synchronized or alternating flash patterns with compatible Whelen devices. Permanent mount L21 models include 25 Scan-Lock™ flash patterns and are designed for reliable fixed installation.

The L21HAP features an amber high dome, hard-coated polycarbonate dome, polycarbonate base, fully encapsulated electronics, reverse polarity protection, and minimal RFI/EMI radiation. It is built for long service life in harsh weather, heavy-duty environments, and fleet applications where dependable warning visibility matters.

For water truck applications, the Whelen L21HAP is a strong fit for roof-mounted, cab-mounted, body-mounted, or bracket-mounted amber warning light installations used during dust control, road construction, jobsite watering, municipal work, fleet service, and roadside operations.

Specifications

Attribute Details
Brand Whelen
Series L21 Series
Part Number L21HAP
Product Type Beacon Light
Beacon Type Super-LED® encapsulated beacon
Light Color Amber
Dome Style High dome
Dome Material Hard-coated polycarbonate
Base Material Polycarbonate
Mount Type Permanent / pipe / “J” hook mount
Warning Coverage 360 degrees
Voltage 12/24 VDC
Amperage at 12 VDC 1.5 peak / 0.6 average
Amperage at 24 VDC 0.75 peak / 0.3 average
Flash Patterns 25 Scan-Lock™ flash patterns for permanent mount models
Control SmartLED®
Sync Capability Yes, for synchronized or alternating flash patterns with compatible Whelen devices
Included Cable / Hardware Permanent mount models include 18 AWG 15" pigtail
High-Dome Height 6.81"
Diameter 6.44"
Electronics Fully encapsulated for moisture, vibration, and corrosion resistance
Electrical Protection Reverse polarity protection
RFI / EMI Minimal RFI/EMI radiation
SAE Standards SAE J595, SAE J845
Regulatory Compliance R10
Warranty 5-year manufacturer warranty
Application Type Amber vehicle warning light
Common Vehicle Use Work trucks, service trucks, construction vehicles, water trucks, municipal equipment, and fleet vehicles
Primary Use Amber warning / visibility lighting