Will hella 002768821 24v horns to a dc36v/48v battery using a dc24v20a 480w step down transformer be the correct amps and watts for these horns?

Transformers only work with AC not DC. You could use a voltage regulator or a series resistor to reduce the applied voltage to 24V. Or, with 48 volts DC you could just wire them in series so that they each get only 24 volts. The current (amps) will take care of itself (I=V/R), about 5 Amps, I'm told.

Will this fit a 2016 subaru legacy? please only yes or no. no shoulds.

This isn't a yes/no question. It'll fit any car so long as you can find a proper place on the frame to mount them. Mine came with only one high-tone horn. I had to find a place to mount the second. Look at videos of others doing it. You may need to drill, and you'll need to run one wire only as the negative runs through the frame.

why are there two ? can i just install one?

Some vehicles are outfitted with two of these, like my SUV. Yes, you could install just one, but I find myself wondering why you don't just by a single horn?

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

3AM 002 768-821 Signal Horn - HELLA HEAVY DUTY HORN S92 SET - 24V - 113dB(A) - Frequency Range: 335/435Hz - High Tone/Low Tone - Electric - ECE - Housing Colour: Black - Quantity: 2

3AM 002 768-821 Signal Horn - HELLA HEAVY DUTY HORN S92 SET - 24V - 113dB(A) - Frequency Range: 335/435Hz - High Tone/Low Tone - Electric - ECE - Housing Colour: Black - Quantity: 2

Product ID: 263640779

Details

Brand
Hella
Colour
Black
Fit type
Vehicle Fit
Material
metal Plastic
Voltage
24 Volts

⚡24V electric power

🎵Dual frequency 335/435Hz

🔊113dB piercing sound

$59.76

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

Description

🔊 Own the road with sound that demands respect!

PLUG PLAY VEHICLE FIT - Vehicle-specific design guarantees seamless installation and optimal performance.
ENGINEERED FOR ENDURANCE - Robust black galvanised metal housing built to withstand the toughest conditions.
COMMAND ATTENTION INSTANTLY - 113dB high & low tone combo cuts through urban noise with precision.
TRUSTED BY INDUSTRY LEADERS - Preferred by top car manufacturers for both passenger and commercial vehicles.
PRECISION GERMAN CRAFTSMANSHIP - Over 100 years of HELLA expertise ensures reliability and compliance with strict ECE standards.

The HELLA 3AM 002 768-821 Signal Horn is a 24V electric horn set delivering a powerful 113dB sound across dual frequencies (335/435Hz). Featuring durable black galvanised metal construction and German precision engineering, it meets strict ECE standards and fits vehicle-specific applications for passenger and commercial cars. Trusted by leading manufacturers, this horn ensures safety and reliability in any traffic environment.

Specifications

ASIN	B01EG18E1U
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	152,781 in Automotive ( See Top 100 in Automotive ) 237 in Car Horns
Brand Name	Hella
Colour	Black
Compatible with Vehicle Type	Passenger Car
Customer Reviews	4.5 4.5 out of 5 stars (541)
Fit Type	Vehicle Specific Fit
Global Trade Identification Number	04082300558906
Included Components	Horn
Item Weight	0.49 Kilograms
Manufacturer	HELLA
Manufacturer Part Number	002768821
Manufacturer Warranty Description	Limited 1 Year
Material Type	metal Plastic Stainless Steel Alloy Steel
Model Number	002768821
Noise Level	113 Decibels
OEM Equivalent Part Number	002 768-821, 3AM 002 768-821, 56370045, A100-323, S92 SET
Part Interchange Info	002768821
Style Name	High & Low Tone / 24 V
Unit Count	2.0 count
Voltage	24 Volts

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

$59.76

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

View all Trustpilot reviews