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Description
Sequre Blueson A1 2-8S 70A AM32 4in1 ESC - 20x20mmThe Sequre Blueson A1 2 8S 70A AM32 4in1 ESC is a high performance electronic speed controller designed for advanced multirotor applications. Compactly built on a 20x20mm mounting pattern, it supports 2 to 8S LiPo batteries, delivering up to 70A continuous current per ESC. Featuring the reliable AM32 processor, it ensures precise motor control and efficient power management. This 4 in 1 ESC simplifies wiring and reduces weight, making it ideal for
The Sequre Blueson A1 2-8S 70A AM32 4in1 ESC is a high-performance electronic speed controller designed for advanced multirotor applications. Compactly built on a 20x20mm mounting pattern, it supports 2 to 8S LiPo batteries, delivering up to 70A continuous current per ESC. Featuring the reliable AM32 processor, it ensures precise motor control and efficient power management. This 4-in-1 ESC simplifies wiring and reduces weight, making it ideal for competitive drone pilots seeking responsive throttle control and enhanced flight stability. Its robust design and advanced firmware compatibility provide durability and customization for expert users.
Check out all our Flight Controllers and the rest of our Sequre Products!
Features:
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(1) High-quality ultra-high copper thickness PCB ensures the current carrying capacity while improving heat dissipation. Equipped with top-level MOSFET, it enhances flight performance and makes you enjoy the fun of flying in the air.
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(2) Equipped with a high-speed 32-bit processor, it supports full-segment dynamic PWM variable refresh rate of 8KHz-128KHz, with more precise speed response and smoother throttle control.
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(3) Supports 6S/8S wide range voltage input, allowing your aircraft to adapt to power batteries of different specifications, improving the versatility of the device.
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(4) With 20*20mm installation hole spacing, it is tailor-made for racing drones and easy to install.
- (5) ESC reserves a large area of solder pad to effectively reduce the difficulty of soldering.
Specifications:
- Processor: AT32F421
- PWM Frequency: 8KHz-128KHz
- Working Voltage: 2-8S Lipo
- Firmware: AM32
- Continuous Current: 70A
- Peak Current: 150A
- Support Protocol: Dshot600/300/150,Oneshot,Multishot,PWM
- Telemetry Return: YES
- Galvanometer: YES
- BEC: NO
- Mounting Hole Spacing: 20x20mm, Φ4mm/M3
- Product Size: 42.5*36*7mm(L*W*H)
- Product Weight: 19g
Package Includes:
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1 x SEQURE Blueson A1 4IN1 ESC
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1 x 30AWG 40mm reverse double plug SH1.0-8P cable
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1 x 30AWG 60mm single plug SH1.0-8P cable
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2 x 12AWG 100mm power cable (black/red)
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1 x XT60H-M black male connector
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1 x 35V 680UF solid capacitor
- 5 x M3*8mm shock absorbing washer (black)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
DERM APPROVED!
I am obsessed with this product!! This feels very luxurious on my skin and does not pill like other products I have had in the past. I have noticed a significant improvement in the background redness in my skin. As someone who works in derm and values good ingredients and products that actually work... I can confidently say that this is the best OTC azelaic acid product I have tried out. It sits very nicely under my moisturizer and does not dehydrate my skin like other azelaic acid products have done in the past. HIGHLY RECOMMEND
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Reviewed in the United States on May 10, 2026
★★★★★ 5
A Game Changer for Sensitive Skin
I use this serum every single day, and it has become one of the most important products in my skincare routine. I have very sensitive skin and cannot tolerate stronger active ingredients such as retinol or high-strength acids, so finding something effective but gentle has been incredibly important.
This serum has helped calm redness, reduce inflammation, and noticeably improve my skin’s overall appearance and comfort. After dealing with a prolonged inflammatory skin condition, this product made a significant difference and helped restore my skin barrier.
The formula feels soothing, hydrating, and non-irritating. If you have sensitive or reactive skin and are looking for a gentle product to help with redness and uneven texture, I highly recommend giving this serum a try.
Photos attached: The green bottle is the product and the second photo includes my favorite additions.
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Perfect for Acne-Prone Skin!
This serum has honestly been a great addition to my routine for redness and post-acne marks. The texture is lightweight, hydrating, and doesn’t feel sticky or heavy on my oily/acne-prone skin.
I have sensitive skin with a focus on barrier protection, and this didn’t irritate my skin at all. It layers beautifully with the rest of my skincare and leaves my skin looking calmer and smoother over time. AND, it doesn’t have a smell!!
Definitely one of my favorite azelaic acid serums I’ve tried.
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Reviewed in the United States on May 18, 2026
★★★★★ 5
6-Month Update: Still a staple for sensitive, acne-prone skin
Size: 3.38 Fl Oz (Pack of 1), Size: 3.38 Fl Oz (Pack of 1)
I originally reviewed this ampoule when I first started using it, and now after about six months of consistent use (morning and night), I feel confident giving a more long-term update.
I have sensitive, acne-prone, combination skin, and this has remained one of the most reliable products in my routine. The texture is still one of my favorite things about it — very lightweight, absorbs quickly, and layers well under moisturizer and sunscreen without pilling.
Over time, I’ve noticed:
Less visible redness
More balanced oil production in my T-zone
Fewer irritation flare-ups when introducing new products
No clogged pores or breakouts from this formula
It doesn’t feel heavy or sticky, even in humid weather. I’ve continued repurchasing and even keep it on subscription because it consistently performs without causing sensitivity.
If you’re looking for a gentle, soothing centella product that works well for long-term barrier support, this has proven to be a dependable option in my experience.
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Reviewed in the United States on December 9, 2025
★★★★★ 5
Healed my barrier so fast
Size: 3.38 Fl Oz (Pack of 1)
I received this ampoule yesterday and I'm already leaving a 5 star review after 2 uses because it just worked so well. I bought it because I've recently incorporated the Timeless 20% Vitamin C into my routine and that + my tretinoin made my skin drier than I've ever felt it before, even gently swiping a cotton pad with micellar would sting on some parts of my face. As soon as this ampoule arrived I applied it to clean skin and layered squalane on top (my moisturizer was burning as well.) This product did not sting my face AT ALL. It instead felt immediately soothing and hydrating. When I woke up this morning almost all of my redness was gone, my skin didn't feel tight or irritated, and my skin tone looked so even and glowy. I never thought a product, especially such a simply formulated one, could heal my barrier so quickly but that's exactly what it did and I can already tell it's a repeat buy. If you have redness prone sensitive skin and/or you use several high strength actives, this ampoule is a must have and it might be the key for anyone struggling to tolerate high strength retinoids. I got the largest size bottle for $15 on sale and it's seriously one of the most affordable and effective skincare products I've ever had in my routine.
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Reviewed in the United States on May 30, 2026