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TMT Power Supplies

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TMT sells LED power supplies under several series names, and each TMT website presents a different set. All series reviewed are described as constant-voltage units. This page lists which series appear where and the main stated differences; details and full sources are on each product page.

Overview by website

Site Series shown This site’s page
usa.tmtleds.com DC 12V Output Class 2: LDM060-12-C21, LDM120P-12-C22, LDM180P-12-C23, LDM240P-12-C24, LDM300P-12-C25 12V Class 2
usa.tmtleds.com DC 24V Output Class 2: LDM100P-24-C21, LDM200P-24-C22, LDM300P-24-C23 24V Class 2
tmtledsusa.com; tmtleds.com homepage 7 Year Warranty 12V Series (60, 150, 240 W) 7-year 12V
tmtledsusa.com; tmtleds.com homepage 7 Year Warranty 24V Series (60, 150 W) 7-year 24V
tmtledsusa.com; tmtleds.com homepage 5 Year Warranty 12V Series, LDM060-1205-C21 (60 W) 5-year 12V
tmtleds.com, tmtledsasia.com (category pages) OMS-EP 12 V drivers, 60–400 W OMS-EP

Sources: usa.tmtleds.com Power Supplies; tmtledsusa.com Power Supplies; tmtleds.com; tmtleds.com Power Supplies; tmtledsasia.com Power Supplies.

Class 2 LDM series (usa.tmtleds.com)

The 12 V datasheets state 5 A per output group, 100–277 Vac input (120–277 Vac for the 300 W model), UL8750, IP67/IP68 and a 5-year warranty at Tc 75 °C (12 V 120 W datasheet; 12 V 300 W datasheet). The 24 V datasheets state 4 A per output group, rated power of 96, 192 and 288 W, and 93% typical efficiency, while the web listing names them 100, 200 and 300 W (24 V 100 W datasheet; 24 V 300 W datasheet; usa.tmtleds.com Power Supplies). No datasheet is linked for the 60 W LDM060-12-C21 (usa.tmtleds.com Power Supplies).

5-year and 7-year LDM series (tmtledsusa.com)

These pages describe Class 2 constant-voltage drivers with 90–305 V AC input; the 7-year 12 V pages list IP68 (7-year 12 V 60 W page; 5-year 12 V page). The warranty statements list the same or similar model numbers as Silver Series (5 years parts, 5 years labor) and Gold Series (7 years parts, 5 years labor) (tmtleds.com warranty PDF). The Feb 2023 datasheets suggest loading a power supply to no more than 85% of its rated power (TDS-LDM060P-1205-C21).

These series are not listed on usa.tmtleds.com, and no source states that they are discontinued (usa.tmtleds.com Power Supplies).

OMS-EP drivers (tmtleds.com, tmtledsasia.com)

The global category lists six 12 V constant-voltage OMS-EP models from 60 W to 400 W, each with a 3-year warranty (tmtleds.com Power Supplies). The product pages state 200–240 V AC input, IP68 and “3 years Warranty (5 years optional)” (OMS-EP060-12V-L). The linked outdoor driver datasheet also covers 24 V versions (OMS-EP datasheet). The pages reviewed do not state a UL listing or Class 2 rating (OMS-EP060-12V-L).

Key differences and open points

Topic What the sources show Sources
UL file numbers E479229 on the 2025 usa.tmtleds.com datasheets; E491014 on the Feb 2023 tmtledsusa.com datasheets 12 V 120 W datasheet; TDS-LDM060P-1205-C21
Warranty coverage Current Class 2 LDM…P-C2x models are not in any warranty statement; OMS-EP is not in the linked warranty PDF usa.tmtleds.com Warranty Statement; tmtleds.com warranty PDF
Shared order code TMT-105675 is printed for LDM060-12-C21 and LDM100P-24-C21 on usa.tmtleds.com, and 105675 for LDM060-1205-C21 on tmtledsusa.com usa.tmtleds.com Power Supplies; 5-year 12 V page
Model number spelling LDM060-1205-C21 (page) vs LDM060-12050-C21 (warranty statement) 5-year 12 V page; tmtleds.com warranty PDF

The shared order code may indicate the same product under a new code, or a listing error; no source states which. For driving methods, see Constant current and constant voltage; for warranty details, see TMT warranty terms.

Sources