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Magnitude LED Power Supply Dimmable by Magnetic Low Voltage Dimmer 12V - 300W

300 Watt dimmable led power Dimmable Transformer Dimmer LED
300 Watt dimmable led power Dimmable Transformer Dimmer LED

SKU: PS-MT-300-12

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If you have you been looking for a way to dim your LED Lights from a wall mounted dimmer, then this is the LED Power Supply for you. Use any compatible low voltage magnetic dimmer and dim your LED lights from 0-100%. This power supply is ETL listed, CSA listed, and encased in a NEMA 3R enclosure. Built in manual reset thermal circuit breaker allows for shutdown upon an electrical short. We have 120VAC input or 277VAC input, 60Hz available. Output 12VDC up to 300w. Can be dimmed with standard low voltage magnetic dimmer, see list of compatible dimmers below. Transformer is fully encapsulated for protection against the elements. No External Fusing Required. Avoid using dimmers not rated for magnetic low voltage lighting or not labeled as symmetrical forward phase as they may cause overheating of the power supply or cause damage to the load. It is also not recommended to use dimmers with neutral connections or dimmers requiring a minimum load for proper operation.


ModelMagnitude LED Power Supply MLV Dimmable
Dimensions4.20"L x 3.50"W x 9.81"H
AC Input Voltage120VAC and 277VAC (separate parts)
DC Output12VDC - 25A
Output Watts Max12VDC - 300W
Warranty Period2 Years


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Interim Review

Stunningly fast delivery. We've previously purchased one such power supply identical to the two additionals now purchased. Initially-purchased power supply was easy to understand and connect with a LED prototype fixture, partly to test dimming with Lutron Diva dimmer. Power supply provided appearance of steady illumination down to about 70% of maximum, the test we wanted it to pass.

Nov 13, 2020 | George and Jill Emmert


Products Used for Installation