Simple Voltage Matching
Dedicated 12V and 24V constant-voltage options make it easier to match the driver to the LED system already specified in the sign.
TMT Constant-Voltage Class 2 LED Drivers
Power Supplies Built to Make LED Systems Work Smarter
Whether your sign already uses TMT modules or LEDs from another manufacturer, a correctly matched TMT Class 2 power supply is an easy way to bring dependable constant-voltage power, high operating efficiency, broad protection, and clear 12V or 24V capacity choices into the system.
A practical power platform
Why TMT Power Supplies Are an Easy Choice
Start with the voltage and connected LED load. Then select a capacity that gives the installation appropriate operating headroom and follows the applicable electrical requirements.
Efficiency You Can See
Typical efficiency values in the supplied datasheets range from 88% to 93%, helping reduce wasted input energy and unwanted heat.
Protection Built In
Datasheets list over-current, over-voltage, short-circuit, and over-temperature protection across the featured range.
Animated efficiency view
More Input Power Directed Toward the LED Load
The animated bars use the typical efficiency values stated in the uploaded datasheets. Efficiency varies by model and operating conditions, but the range gives sign professionals a fast visual comparison.
AC Input100/120-277VAC depending on model datasheet
DC OutputStable 12V or 24V constant-voltage supply
60W 12V
88%
12V P-Series
91%
24V Series
93%
Typical efficiency values are model-specific and are shown for comparison only. Confirm the individual datasheet before design or installation.
12V and 24V Class 2 lineup
Compare TMT LED Power Supplies
Each product card includes aligned specifications, direct product access, and the matching technical datasheet.
60W
12V
12V
LDM60-12-C21 · TMT-105675
60W 12V Class 2 Power Supply
- 60WRated output
- 5ARated current
- 88%Typical efficiency
- IP67 / IP68Datasheet listing
Compact entry point for smaller constant-voltage LED loads.
120W
12V
12V
LDM120P-12-C22 · TMT-107578
120W 12V Class 2 Power Supply
- 120WRated output
- 2 x 5AOutput groups
- 91%Typical efficiency
- 173 mmHousing length
Two output groups support organized load distribution.
180W
12V
12V
LDM180P-12-C23 · TMT-107579
180W 12V Class 2 Power Supply
- 180WRated output
- 3 x 5AOutput groups
- 91%Typical efficiency
- 252 mmHousing length
Balanced mid-range capacity for larger sign systems.
240W
12V
12V
LDM240P-12-C24 · TMT-107580
240W 12V Class 2 Power Supply
- 240WRated output
- 4 x 5AOutput groups
- 91%Typical efficiency
- 284 mmHousing length
Higher output for demanding 12V constant-voltage installations.
300W
12V
12V
LDM300P-12-C25 · TMT-107581
300W 12V Class 2 Power Supply
- 300WRated output
- 5 x 5AOutput groups
- 91%Typical efficiency
- 295 mmHousing length
Maximum featured 12V capacity with five output groups.
100W
24V
24V
LDM100P-24-C21 · TMT-107743
100W 24V Class 2 Power Supply
- 96WRated output
- 4ARated current
- 93%Typical efficiency
- 173 mmHousing length
Nominal 100W model with 96W rated output in the datasheet.
200W
24V
24V
LDM200P-24-C22 · TMT-107582
200W 24V Class 2 Power Supply
- 192WRated output
- 2 x 4AOutput groups
- 93%Typical efficiency
- 252 mmHousing length
Nominal 200W model with 192W rated output in the datasheet.
300W
24V
24V
LDM300P-24-C23 · TMT-107583
300W 24V Class 2 Power Supply
- 288WRated output
- 3 x 4AOutput groups
- 93%Typical efficiency
- 295 mmHousing length
Nominal 300W model with 288W rated output in the datasheet.
External PDF notice: Datasheet links open Shopify-hosted PDF files in a new tab.
Built-in safeguards
Four Layers of Output Protection
The supplied datasheets identify these protection functions across the featured power supply range.
OCP
Over-Current
Helps protect the power supply when current exceeds the intended operating range.
OVP
Over-Voltage
Helps limit damaging output voltage conditions.
SCP
Short-Circuit
Designed to recover after the fault condition is removed, as stated in the datasheets.
OTP
Over-Temperature
Helps protect the driver when internal temperature exceeds safe operating limits.
Brand-neutral system upgrade
Keep the LEDs. Improve the Power Strategy.
TMT power supplies are designed for constant-voltage LED signage loads. That makes them a practical consideration for new builds and service work even when the installed modules are another brand. The voltage, connected wattage, output grouping, wiring, environmental rating, and applicable code requirements must still be matched correctly.
Channel Letters
Sign Cabinets
LED Lightboxes
Retrofit Projects
LED Strips
Outdoor Signage
Power supply knowledge center
Frequently Asked Questions
These answers combine the supplied TMT datasheets with current product information published by TMT LEDs. Final design and installation must follow the selected model datasheet and applicable electrical codes.
Can I use a TMT power supply with another brand of LED modules?
Potentially, yes. These are constant-voltage LED drivers intended for signage modules, LED strips, and similar constant-voltage loads. The LED system must match the driver's 12V or 24V output, remain within the usable output capacity, and meet wiring, environmental, and code requirements.
How do I choose between a 12V and 24V power supply?
Match the output voltage to the LED modules or strips. A 12V LED system requires a 12V constant-voltage driver, while a 24V system requires a 24V driver.
How do I select the correct wattage?
Add the connected wattage of all LED modules on the driver and account for practical design headroom, wire runs, environmental conditions, and manufacturer guidance.
Why do the 24V 100W, 200W, and 300W models show lower rated output values?
The supplied datasheets list rated outputs of 96W, 192W, and 288W respectively. Use the rated-output value when calculating the connected load.
What does Class 2 mean on these power supplies?
Class 2 refers to a limited-power circuit classification used in low-voltage installations. Installation requirements still depend on the specific model, wiring method, listing, and local electrical code.
What are the multiple output groups?
Several models divide total capacity into separate output groups. Loads must be distributed according to the model's wiring and rating requirements.
Are these power supplies suitable for outdoor signage?
The supplied datasheets list IP67/IP68 protection for applicable models. Outdoor suitability depends on proper installation, grounding, drainage, ventilation, connections, enclosure conditions, and the exact product listing.
What efficiency should I expect?
The supplied datasheets list typical efficiency of 88% for the 60W 12V model, 91% for the 12V P-series models, and 93% for the featured 24V models.
What input voltage do the drivers accept?
Several datasheets list 100-277VAC or 120-277VAC. Always use the specific datasheet and product label for the installed model.
What surge and fault protection is included?
The datasheets list surge protection plus over-current, over-voltage, short-circuit, and over-temperature protection.
What is derating and why does temperature matter?
Derating means reducing the allowable output load as case or ambient temperature rises. Each datasheet includes a derating curve.
Can multiple power supplies be connected in parallel?
Do not parallel outputs unless the manufacturer explicitly allows it for the exact models and installation.
Does the metal housing need to be grounded?
Yes. Protective earth must be connected reliably by qualified personnel using approved connectors and methods.
What warranty applies?
The uploaded 2026 datasheets state a five-year warranty for the featured models. Confirm the exact datasheet revision and purchase terms for the unit being ordered.
Can Amcad help calculate the required power supply?
Yes. Provide the LED brand and model, voltage, module quantity, wattage per module, sign dimensions, wire-run details, and installation environment.
Technical basis: TMT 12V 60W, 120W, 180W, 240W, and 300W datasheets; TMT 24V 100W, 200W, and 300W datasheets; and current TMT LEDs manufacturer product information. Electrical installation must be completed by qualified personnel.
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