Is this flasher realy on/off at all times once power is supplied to unit?

First of all it is not a flasher relay as does not have a timer installed inside it is a standard relay with normally closed or open contacts and when power supplied to it the contacts will operate depending on which tab you have wired to will make or break the supply to the device being powered I use for switching vac pumps on braking systems for locos on a small railway.

Is this a latching relay? Push a button to start, then push a button to stop?

noo. you don't have to push any button , it start automatically and stop automatically ,, ( by current )

Will it be able to switch a 36v main with a 12v signal input?

It's rated 12 volts so unlikely. Fine for car spot lights or in my case heated windscreen.

From what I know of relays, the diagram on this listing shows incorrect wiring. Can you confirm please?

Hello, the diagram on this listing shows is correct, pin85 and pin86 can connect battery and ground in reverse

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Gebildet 2pcs JD1914 Car Relay Harness 12V 40A 5 Pin SPDT 12AWG Harness Sockets with Built-in Diode for Automotive Truck Van Motorcycle Boat

Gebildet 2pcs JD1914 Car Relay Harness 12V 40A 5 Pin SPDT 12AWG Harness Sockets with Built-in Diode for Automotive Truck Van Motorcycle Boat

Product ID: 58831489

Details

Connector type
5 pin
Contact material
Silver
Contact type
spdt
Current rating
40 Amps
Mounting type
Socket Mount

⚡40A high current rating

⏱️≤15ms ultra-fast switching

🛡️Built-in diode for voltage protection

€ 28.09

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Drive with confidence—power, speed, and protection in one sleek relay harness!

COMPACT COMPATIBLE - 5-pin SPDT design fits seamlessly in cars, trucks, motorcycles, and boats with 12V systems.
DURABILITY THAT LASTS - Engineered for 100,000 electrical and 10 million mechanical operations—reliability you can trust.
POWERHOUSE PERFORMANCE - Handles up to 40A at 12V DC for robust automotive applications.
BUILT IN VOLTAGE SHIELD - Integrated diode suppresses harmful voltage spikes, protecting your electronics.
LIGHTNING FAST RESPONSE - Switching times under 15 milliseconds keep your systems ultra-responsive.

The Gebildet JD1914 Car Relay Harness is a 12V, 40A 5-pin SPDT relay with a built-in diode to prevent voltage spikes. Featuring silver alloy contacts and ultra-fast switching under 15ms, it offers exceptional durability with up to 100,000 electrical cycles and 10 million mechanical operations. Compact and compatible with a wide range of vehicles, it ensures reliable, high-performance electrical switching for automotive, truck, motorcycle, and marine applications.

Specifications

ASIN	B0778J4WQW
Best Sellers Rank	1,688 in Automotive ( See Top 100 in Automotive ) 2 in Car Relays
Brand	Gebildet
Coil Resistance	1.8E+2 Ohms
Coil Voltage	12 Volts (DC)
Connector Type	5 pin
Connector type	5 pin
Contact Current Rating	40 Amps
Contact Material	Silver
Contact Type	spdt
Contact material	Silver
Contact type	spdt
Country Of Origin	China
Current Rating	40 Amps
Current rating	40 Amps
Customer Reviews	4.7 out of 5 stars 987 Reviews
Manufacturer	Gebildet
Manufacturer Part Number	DE080
Minimum Switching Voltage	8 Volts
Model Number	DE080
Mounting Type	Socket Mount
Mounting type	Socket Mount
Number of Items	2
Number of Packs	2
Operating Time	0.03 Seconds
Operation Mode	Automatic
Release Time	0.01 Seconds
Wattage	1.8 watts

Reviews

A**5

Perfect.

Used on the electrics of our camper van; look to be well made with decent quality connector sockets and cable. Works well so far with no issues switching 30 amps.

11.06.2026

K**E

Excellent product

15.07.2026

P**D

Quality item.

Quality item, fitted perfectly. Thanks

29.03.2026

S**H

Perfect

Worked perfectly

11.07.2026

N**E

Pre wired for easy installation.

Excellent product. Just what I needed for the electrics on my motor home.

2.12.2025

N**K

Good value

Does exactly what it should do, good robust holders with good gauge cables. Good value and easy to use

21.02.2026

N**N

Very good

Very good item would recommend

13.07.2025

M**H

Doesn't fix the hyper flashlight on led bulbs!

This Relay doesn't fix the hyper flashing iessues on led bulb lights! So if your indicators are flashing to fast, this will not fix the iessue!

3.03.2025

B**W

Top 👍

Schnell geliefert, alles top

9.06.2026

M**N

Parfait !

8.01.2024

A**E

Prima artikel

👍

26.07.2022

C**N

Sin problema . . .

Todo perfecto. Buena calidad . . .

11.07.2026

G**I

Rele per azionamento pompa acqua

Funzionamento perfetto

22.06.2026

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€ 28.09

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered 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 Croatia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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