LEDwholesalers Dimmable 12-Volt DC Magnetic Transformer Power Supply for LED Flexible Strips, ETL Listed, 300 Watt, 3257-12V


Key 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
- •ETL listed; certified to CSA standard
LEDwholesalers Dimmable 12-Volt DC Magnetic Transformer Power Supply for LED Flexible Strips, ETL Listed, 300 Watt, 3257-12V
List Price: $253.17$227.85DEALYou Save: $25.32 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 23, 2026In Stock (3)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection
Customer Reviews
Reviews sourced from verified Amazon purchasers5.0
out of 5
Based on 6 reviews
5★
100%
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Great Transformer
rick in phx•October 4, 2015
Ordered 2 of these. Received them quickly and they work great.
NICE FIND!! good price for LED dimmible load
handbellringer•August 14, 2015
bought to use with strip lights. Ran 5 strip lights per transformer for each over beam pointed towards cathedral ceiling so total 10 spools each with dimmable switch. These are awesome!! I can read by the lights and the transformers handle the load no problem. Wiring and mounting simple and intuitive.
Five Stars
Ernesto Graziano•May 29, 2015
Great Transformer
Five Stars
Peter A Van Dyck•January 8, 2015
Work great with dimmer switches and no glitches either, smooth dimming for great lighting effect.
Works well on LED strip lights... very happy
Loghound•September 15, 2014
This thing is big but works well - I used it for a large run of LED strip lights that I wanted to dim through a wall switch. Because I was doing an attic install (where it get's hot) I wanted to properly de-rate this so I purchased the 300W model even though I am only burning about 120W or so.
It's been installed for a few weeks and so far I'm very happy with it.
In case you are wondering - the advantage of this kind of LED power supply is you can dim it on the AC side (via wall switches as long as they are magnetic rated) -- It works very well for that.
It's been installed for a few weeks and so far I'm very happy with it.
In case you are wondering - the advantage of this kind of LED power supply is you can dim it on the AC side (via wall switches as long as they are magnetic rated) -- It works very well for that.
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