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- USA
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Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
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Description
12v WATERPROOF AUTOMOTIVE & MARINE HEAVY DUTY RELAY 40AMP-STARTOur heavy duty 40amp waterproof automotive & marine starter motor relay is the best choice for any type of 12 volt for your marine wiring project. Also used for many car electronic applications to turn on off almost any devices. They are also used when a device draws heavy amperage such as car alarms, remote starts, HID headlights, pop doors, trunk releases strobe lights, fog lights, stereos, fans, air horns, and much more. The single pole double
Our heavy duty 40amp waterproof automotive & marine starter motor relay is the best choice for any type of 12-volt for your marine wiring project.
Also used for many car electronic applications to turn on/off almost any devices.
They are also used when a device draws heavy amperage such as car alarms, remote starts, HID headlights, pop doors, trunk releases strobe lights, fog lights, stereos, fans, air horns, and much more.
The single pole/double throw relay will never get stuck or short out on you.
A 5-pin relay has the versatility of being used as either a standard 4 pin
relay or a 5 pin for more complex control applications.
relay or a 5 pin for more complex control applications.
Connectible interlocking sockets for an easy installation.
Complete with:
1 x 5 pin 12volt 40amp starter relay + waterproof housing.
1 x Terminal block + waterproof housing
5 x terminal pins
1 x blanking plug.
1 x metal detachable mounting bracket.
1 x blanking plug.
1 x metal detachable mounting bracket.
Part No: BWAMRY40AST
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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4.2 ★★★★★
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Product Reviews
★★★★★ 5
Cooling Blanket is a sleep saver for me!
This is the second product I have used from bedsmile and as with the other one, this is a great product! It truly is a cooling blanket. I am a very hot sleeper and live in a hot, humid climate, so this has been a sleep saver for me! One side is silky smooth and feels so good on your skin. The other side has a texture to it which is great if you want to use it as your only bedding, which I do. It covers well and hangs over the edges as it should. I ordered the white one and it is bright and unblemished. The silky side magically feels much cooler than typical bedding and keeps me cooler during the night. It is lightweight but heavy enough to make you feel that you are "under the covers". In my opinion, putting additional covers over it would defeat the purpose but if you live in a cooler climate, it would still be beneficial to use this blanket as the silky coolness would help get a good night's sleep anywhere. Another great benefit of this product is that it does not have any strange odors when unpacking. I did wash it before using, but honestly, I am not sure it was necessary.
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Reviewed in the United States on March 20, 2026
★★★★★ 5
Incredible Value - Soft, Stays in Place, and Military Son Approved!
Size: California King, Size: California King
I purchased this mattress topper for under $27 and I'm so impressed that I'm planning to buy another one!
Easy Installation & Perfect Fit:
This topper was incredibly easy to put on, and it fits my California King mattress perfectly. The 18-inch deep pockets ensure it stays in place - I can move around on the bed and it doesn't shift at all.
Comfort:
The topper is wonderfully soft and has made a noticeable difference in our sleep quality. My husband absolutely loves it, and we both wake up feeling more rested.
The Ultimate Test:
My son recently came home after being deployed for a year. He slept on our bed for hours and immediately commented on how soft and comfortable it was. That's saying something for someone who's been sleeping on military accommodations! He was so impressed that he's planning to buy one for his ship.
Bottom Line:
For the price, comfort, and quality, I recommend this 100%. It's hypoallergenic, stays in place, and has exceeded all our expectations. You can't go wrong with this purchase!
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Reviewed in the United States on November 5, 2025
★★★★★ 5
Nice mattress Topper Pad
Size: Queen
Met my expectations and was just as advertised. Good fit; comfortable.
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Reviewed in the United States on April 20, 2026
★★★★★ 5
Incredible
Size: Twin
This product exceeded my expectations. The quality is amazing, it works perfectly, and it was definitely worth the price. I’ve been using it for a while now and I’m really satisfied with the results. I would highly recommend it to anyone looking for something reliable and well made.”
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Reviewed in the United States on May 23, 2026
★★★★★ 4
Mattress protector
Size: Twin
Arrived quickly. No factory odor. Was "scrunchy" out of the package, but fit snuggly around the twin mattress and doesn't make any annoying noise. Basic protective mattress topper. Water proof, but breathable, no condensation under the sheets. Disappointed there wasn't more "fluff", but does the job of protecting my mattress from coffee spills and natural body sweat in between weekly washing. I've had it a while, and it seems to be holding up with monthly washing and drying.
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Reviewed in the United States on April 23, 2026