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In-stock parts
Order by 2PM MST
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Prop 65 Cancer and Reproductive Harm WarningHabituellement prête en 2 heures
2045 West Buckeye Road
Phoenix AZ 85009
États-Unis
The Whelen L21HAP is a high-dome amber Super-LED® beacon engineered to provide high-intensity, 360-degree warning visibility for water trucks, construction equipment, utility vehicles, municipal fleets, and other commercial vehicles operating around jobsites or roadways.
This 12 VDC L21 Series model combines permanent, 1-inch NPT pipe, and J-hook mounting provisions in one beacon base. It provides 25 Scan-Lock™ flash patterns and can synchronize or alternate with compatible Whelen beacons for coordinated vehicle warning coverage.
The L21HAP features a hard-coated polycarbonate dome, polycarbonate base, fully encapsulated solid-state electronics, reverse-polarity protection, and minimal RFI/EMI radiation. Its rugged construction is designed for long service life in harsh weather and heavy-duty operating environments.
| Feature | Details |
|---|---|
| 360-Degree Warning Output | High-intensity amber warning visibility around the vehicle |
| Super-LED® Optics | Consistent LED warning output with low current draw |
| High-Dome Configuration | Maximum-visibility L21 dome profile |
| Combination Mounting | Supports permanent, 1-inch NPT pipe, or J-hook installation |
| Scan-Lock™ | Select from 25 available flash patterns |
| Sync Capability | Synchronize or alternate patterns with compatible Whelen beacons |
| Encapsulated Electronics | Resists moisture, vibration, and corrosion |
| Attribute | Details |
|---|---|
| Brand | Whelen |
| Series | L21 |
| Model | L21HAP |
| UnitedBuilt SKU | 0012620 |
| Product Type | Amber LED Beacon Light |
| Light Color | Amber |
| Dome Profile | High Dome |
| Optics | Super-LED® |
| Control | SmartLED® |
| Voltage | 12 VDC |
| Current Draw at 12.8 VDC | 1.5 amps peak / 0.6 amps average |
| Flash Patterns | 25 Scan-Lock™ patterns |
| Mounting | Permanent, 1-inch NPT pipe, or J-hook |
| Dome Material | Hard-Coated Polycarbonate |
| Base Material | Polycarbonate |
| Electronics | Fully Encapsulated, Solid State |
| Electrical Protection | Reverse-Polarity Protection |
| Interference | Minimal RFI/EMI Radiation |
| Height | 6.81 in. |
| Diameter | 6.44 in. |
| Certification | SAE Class 1 for amber L21 models |
| Standards | SAE J595, SAE J845, R10 |
| Warranty | 5 Years |
| Application | Typical Use |
|---|---|
| Water Trucks | Cab-, body-, bracket-, or pipe-mounted amber warning light |
| Construction Equipment | Increased equipment visibility around active jobsites |
| Utility and Municipal Vehicles | Warning coverage during roadside or public-works operations |
| Service and Vocational Trucks | Permanent amber warning lighting for commercial fleets |
| Check | Guidance |
|---|---|
| System Voltage | L21HAP is the 12 VDC configuration; use the designated 24 VDC model when required |
| Mounting Method | Confirm whether the installation will use the permanent, 1-inch NPT pipe, or J-hook provision |
| Circuit Protection | Protect the beacon circuit with a 3-amp fuse as directed by Whelen |
| Wiring | Use appropriate 18 AWG wiring and waterproof connections where exposed to moisture |
| Base Orientation | Position the drain hole toward the rear of the vehicle |
| Visibility | Install where the beacon’s warning output will not be obstructed |
| Cleaning | Clean the dome with soap and water; do not use a pressure washer |
| Country of Origin | USA (subject to change) |
|---|---|
| Weight | 4.0 lb |
| Series | L21 |