OEM Supported 12V 21A 250W Ultra Slim Switching Power Supply, 250W 12V LED Strip Lighting Transformer with 3-Year Warranty, for Commercial Lighting Projects
The built-in LED indicator clearly shows real-time working status, while full overvoltage, overcurrent and short-circuit protection safeguards your connected devices. It works seamlessly as a 12V LED strip lighting transformer, 250W DC power supply for 3D printer, and reliable 12V transformer for monitor, router, motor, fan, pump and speaker, ideal for home lighting and small industrial use.
This OEM 12V 21A 250W ultra slim switching power supply is purpose-built for large-scale commercial lighting projects, delivering stable, flicker-free 12V DC output to power long runs of LED strips without voltage drop issues. Its ultra-thin low-profile design easily tucks into tight gaps inside light boxes, ceiling cavities or signboard frames, no extra installation space wasted.
As a professional 12V 21A commercial LED strip power transformer, it supports universal 90-264V wide AC input, adapting to different regional power grids perfectly. This 12V 21A 250W overheat protected switching power supply features optimized honeycomb heat dissipating holes and a full aluminum housing, enabling efficient natural cooling even during non-stop 24/7 operation.
Backed by a 3-year official warranty, it integrates complete overvoltage, overcurrent and short-circuit protection mechanisms. Customizable output parameters, casing logos and interface types are all available for bulk orders, making it the ideal reliable power solution for commercial lighting engineering, retail store decor, outdoor signboard and hotel lighting projects.









1. Regular package: each one with brown/OEM box,then 15pcs in one carton.
2. Individual package: inner box inside,15 pcs/carton.
3. Customized package is accepted.
Delivery time:






To cater to present increasingly fierce market competition and the demands of the rapid development of high technology, R&D persons improved power circuit ways to make them with overvoltage, overcurrent, overload, short-curcuit and overtemperature protections, which can protect your products at a certain extent through cutting off output circuit way when any problem happens. Our factory has a relevant series of professional test machines to test each product to make each one qualified!





We are based in Guangdong, China, start from 2007,sell to North America(20.00%),Eastern Europe(20.00%),Western Europe(20.00%),South America(15.00%),Southern Europe(15.00%),Oceania(5.00%),Domestic Market(5.00%),Southeast Asia(0.00%). There are total about 101-200 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Power Adapter/Travel Adapter,USB-C PD Charger/Power Supply/Cable,Power Adapter
4. why should you buy from us not from other suppliers?
1. Yidashun has two factories, one factory for power adapters and power supplies, the other factory for power cables and dc cables.
2. Yidashun has a professional R&D team for more than 10 years.
3. Yiadshun got CE, ROHS, FCC, CB, UL, VDE certificates.
5. what services can we provide?
Accepted Delivery Terms: FOB,CIF,EXW,Express Delivery;
Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;
Accepted Payment Type: T/T,L/C,MoneyGram,PayPal,Western Union,Cash;
Language Spoken:English,Chinese


