Best in 7 days
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Ships within 48 hours · Estimated delivery Jun 12 - Jun 17
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Description
KWS-912V USB Boost Converter DC 5V to 9V / 12V Converter Cable + 3.5x1.35mm Plug Set1. The Step up regulator is designed with a switch, you can choose the 9v or 12v output through it, and the LED display would indicate the value of the output voltage. 2. It can be used to power the router via the external battery if it is turned off. 3. You can still enjoy WIFI during power outages. 4. It can also be applied to other devices with a 5v power supply, such as small fan, desk lamp, solar panel, USB power pack, power adapter, etc. 5. Fine
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- Free Standard Shipping on $100+ Orders to the USA.
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.5 ★★★★★
Based on 667 reviews
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Product Reviews
★★★★★ 4
A Korean Skincare Wonder!
This is truly an amazing skin product. I give it four stars only because it's a work in progress. I anticipate more great news to come. Regular use (two pumps a day, one a.m., one p.m.) are now beginning to reflect success. Skin on face is plumper. Big news is that the skin on the back of my hands - which I've ignored for years - is taking on a new dimension. All of this at such an affordable price. Can't wait to see the total impact. Love it
!
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Reviewed in the United States on April 24, 2026
★★★★★ 5
Effective!
Works so well! Using on face, for crows feet, 11 lines, forehead and especially under eyes. It is reducing pores, diminishing fine lines and wrinkles, and giving glowing skin. Also using on elbows, wrinkled hands, and an old scar on my foot. My hands are plumping up and looking more youthful. The dark spots, discoloration and scar are fading and I’m sure will be fine with continuing use.
A word of caution though - don’t use on eyelids because it will break off, thin out and damage eyelashes.
I found that out the hard way and am now using lash serum to grow my once naturally long and healthy eyelashes back. They became half the length, much thinner and brittle.
But skin is looking good and folks are starting to comment! Only use around the orbital bone and avoid the lash lines!
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Reviewed in the United States on May 4, 2026
★★★★★ 5
Ladies! Get this!! Especially if you're beginning to get wrinkles!
Im new to serums. Im 43 with problem skin, acne scars, and early signs of aging. I did a lot of research on what vitamins my skin is missing at this age and with my health issues. Everything pointed to topical retinoids and niacin. I am an absolute skeptic when it comes to the skin claims. I figured the price is right for something I can try for the first time ever. First off: the bottle is huge. Its simple and well packaged. It doesn't have any weird scent. Its yellowish but so are b vitamins so 🤷. Second: i put this on after showering and patting dry. Its definitely something to apply in the morning as it leaves your skin feeling very dewy. I rub in all over my neck and face, really working it into my crows feet and frown lines.
Third: you will have glass skin alone with this but you should still apply a sunscreen.
In about 3 weeks ive noticed 1 how soft and supple my skin is, how much my skin literally glows, my skin tone is more even, my acne has almost completely cleared. 1 month later of using 4 pumps daily and I still have over half the bottle left. Im sold. This is a game changer in my over 40 skin routine.
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Reviewed in the United States on April 20, 2026
★★★★★ 5
Excellent beauty product for mature skin
I have gotten at least four or five of my friends to use this product. It is by far one of the best serums that I’ve used. I think the most noticeable difference is the firming and plumping of my skin and the reduction of fine lines and large pores, especially on my forehead. I will definitely continue to use this. Once a day at bedtime seems to be enough and plenty and for the price it’s a large bottle and it seems to last a long time. It’s a great deal.
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Reviewed in the United States on May 22, 2026
★★★★★ 5
Definitely give it a try!
This product is fantastic! The bottle is huge, and even with twice-daily use (two pumps each time, enough to cover my face, neck, and chest), it lasted me an impressive eight months. I just ordered my second bottle.
The retinal formula is incredibly gentle and is the only retinal product I’ve tried that doesn’t irritate my highly sensitive skin. It’s lightweight, absorbs quickly, and leaves my skin looking smooth, plump, and healthy. I highly recommend it!
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Reviewed in the United States on May 26, 2026
