--- product_id: 3027504 title: "Dimmable 12-Volt DC Magnetic Transformer Power Supply for LED Flexible Strips, Class 2, ETL Listed, 40 Watt, 3233-12V" brand: "ledwholesalers" price: "577 zł" currency: PLN in_stock: true reviews_count: 8 url: https://www.desertcart.pl/products/3027504-dimmable-12-volt-dc-magnetic-transformer-power-supply-for-led store_origin: PL region: Poland --- # Dimmable 40W Power Outdoor Rated Dimmable 12-Volt DC Magnetic Transformer Power Supply for LED Flexible Strips, Class 2, ETL Listed, 40 Watt, 3233-12V **Brand:** ledwholesalers **Price:** 577 zł **Availability:** ✅ In Stock ## Summary > Transform Your Lighting Experience! ✨ ## Quick Answers - **What is this?** Dimmable 12-Volt DC Magnetic Transformer Power Supply for LED Flexible Strips, Class 2, ETL Listed, 40 Watt, 3233-12V by ledwholesalers - **How much does it cost?** 577 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/3027504-dimmable-12-volt-dc-magnetic-transformer-power-supply-for-led) ## Best For - ledwholesalers enthusiasts ## Why This Product - Trusted ledwholesalers brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safety First:** Dual protection with primary and secondary circuit breakers ensures peace of mind. - • **Weather-Ready:** Nema 3R enclosure makes it perfect for outdoor installations, rain or shine. - • **Certified Quality:** Class 2, ETL listed, and certified to CSA standards for reliable performance. - • **Illuminate Your Space:** Dimmable with most standard MLV TRIAC dimmer switches for customizable ambiance. - • **Versatile Installation:** Two knock-outs for conduit allow for flexible and easy setup. ## Overview The Dimmable 12-Volt DC Magnetic Transformer Power Supply is a robust and versatile solution for powering LED flexible strips. With a 40-watt capacity, it features dual circuit protection, a weather-resistant enclosure, and compatibility with standard dimmer switches, making it ideal for both indoor and outdoor applications. ## Description Dimmable 12-Volt DC Magnetic Transformer Power Supply for LED Flexible Strips, Class 2, ETL Listed, 40 Watt, 3233-12V ## Features - Dimmable with most standard MLV TRIAC (leading edge) dimmer switch - Dual protection – primary and secondary circuit breakers - Nema 3R Enclosure – suitable for outdoor use - Two knock-outs for conduit - Class 2; ETL listed; certified to CSA standard ## Images ![Dimmable 12-Volt DC Magnetic Transformer Power Supply for LED Flexible Strips, Class 2, ETL Listed, 40 Watt, 3233-12V - Image 1](https://m.media-amazon.com/images/I/51Zb+YHVioL.jpg) ![Dimmable 12-Volt DC Magnetic Transformer Power Supply for LED Flexible Strips, Class 2, ETL Listed, 40 Watt, 3233-12V - Image 2](https://m.media-amazon.com/images/I/31z1N1UgBSL.jpg) ![Dimmable 12-Volt DC Magnetic Transformer Power Supply for LED Flexible Strips, Class 2, ETL Listed, 40 Watt, 3233-12V - Image 3](https://m.media-amazon.com/images/I/51Zb+YHVioL.jpg) ![Dimmable 12-Volt DC Magnetic Transformer Power Supply for LED Flexible Strips, Class 2, ETL Listed, 40 Watt, 3233-12V - Image 4](https://m.media-amazon.com/images/I/51Zb+YHVioL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ bought in 2015, still working *by J***S on Reviewed in the United States 🇺🇸 on July 2, 2022* installed this for a client in 2015, and it's still working as it should ### ⭐⭐⭐⭐ Works great with Insteon dimmers, a few minor issues. *by A***. on Reviewed in the United States 🇺🇸 on March 6, 2014* My setup: [120VAC from house]--> Insteon Dimmer --> LED DC Magnetic Transformer --> 12VDC LED Undercabinet Strip Lights [35 Watts max]Perfect solution electrically, but a few minor issues:1) Be aware, that if you don't use a dimmer the manufacture says to reduce the LED load to 50% of rated value. In this case that would be 20-watts. Not a problem for me...and most of you, otherwise why spend $70? (Buy one for $15 if you don't need dimming.)2) You will need the following hardware: A pair of wire clamp connectors to put in the 1/2" knockout holes so you don't cut the insulation on your wires. This makes it legal and tidy. Also you'll need five smaller wire nuts and two mounting screws.3) It's a bit over-priced...even though it's high quality and sturdy. I think that $50 would be fair for the 40-watt device...but at this time in history they kinda have you over a barrel.4) Cover plate screw is tiny and faces in an awkward direction (at least in my installation). I had to wire up the transformer device, close the lid, put the screw back in, and THEN secure the transformer in my enclosure.Specifically, I used Insteon in-linelinc dimmers with these LED magnetic transformers. I've used several of the Insteon dimmers now for various inductive loads although I try to keep it under 150-Watts per dimmer. Insteon dimmers are rated at 300-Watts for purely resistive loads and with LED lights, 150-watts is a ton of LEDs. As I stated, for this application my load was 35-watts max. Perfect. I will be upgrading my in-linelinc Insteon Dimmers with DIN-rail mounted Insteon Dimmers in the next week...just to tidy up my installation box; I have other DIN rail devices in the same box. I'll report back at that time but expect no issues there.I do not recommend using Lutron typical dimmers at all for this... if you're on Lutron, pony up for the $80 magnetic-load Lutron dimmer.Transformer noise was reported by other reviewers and would be normal for a transformer, but I haven't noticed any noise at all. Because of the minor issues and high price I'm knocking off a star. I'm an electrical engineer with over 25 years of design experience. Whoever designed this did a nice job. ### ⭐⭐⭐⭐⭐ Perfect for LED lighting applications with wall switch/Dimmer on 120V side. *by J***H on Reviewed in the United States 🇺🇸 on March 4, 2015* Worked perfectly for an LED undercabinet lighting system I installed.You would use this is your want to dim with a typical 120 Volt wall switch. If you don't use a more expensive Magnetic transformer like this, you cannot use 120V dimming (you would have to use a low voltage dimmer on the low voltage side.Wanted my kitchen under cab lighting to be dimmed from a Decora wall switch instead of a hokey low voltage dial.Works great - no buzz. Wish the dim range was greater but pretty good. May be able to adjust dim range but I haven't bothered.Final Note: If you are going to put in LED lighting, MAKE SURE you know what you will end up with. The LED tape light I bought online ended up being a cool white LED look eventhough reviews and MFR specs said 2700K temp..you just cant go by reviews. LED is never going to look at warm as halogen so be ready for that. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/3027504-dimmable-12-volt-dc-magnetic-transformer-power-supply-for-led](https://www.desertcart.pl/products/3027504-dimmable-12-volt-dc-magnetic-transformer-power-supply-for-led) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-10*