Constant Current LED Drivers suit low-wattage lighting systems.

Press Release Summary:

Offering up to 86% efficiency, LCM-25 and LCM-25DA 25 W LED power supplies let designers implement low-wattage intelligent LED lighting control systems and project style lighting designs. Output can be set to levels from 350 mA to over 1 A via built-in DIP switch. While LCM-25 features 2-in-1 dimming function that can be driven by 0–10 Vdc or by PWM control inputs, digital LCM-25DA is additionally equipped with DALI interface and pushbutton dimming function.

Original Press Release:

Constant Current LED Drivers Meet Demands of Low-wattage Intelligent Lighting Systems

Aldermaston, UK – Sunpower’s new LCM-25(DA) 25 W constant current LED power supply allows designers to implement low-wattage intelligent LED lighting control systems and project style lighting designs. The LCM 25(DA) is the latest addition to the LCM series which already includes 40 W and 60 W constant current products. Its output, while maintaining a constant current to meet LED requirements, can be flexibly set to different levels from 350 mA to over an amp by a built-in DIP switch. The LCM-25 features a 2 in 1 Dimming Function which can be driven either by 0-10 VDC or by PWM control inputs. The digital LCM-25DA is additionally equipped with a DALI interface and pushbutton dimming function. LCM-25(DA)s can be synchronised so that up to 10 of these LED drivers can be simultaneously controlled from a single dimming command.

The LCM-25(DA) operates from 180 – 277 VAC input and, with built-in active PFC, meets the harmonic current limitation set by EN61000-3-2 Class C (> 50% load). In line with related luminary requirements, it also has 2 kV heavy-industry surge-level immunity between line and neutral. With next-generation circuit design, the LCM-25(DA) provides up to 86% efficiency, allowing cooling simply by free air convection in ambient temperatures from -30°C to +60°C. No-load power consumption is less than 0.5 W.

The LCM-50(DA) is a rectangular, low profile (23 mm) fully insulated IP20 rated plastic enclosed power supply offering a unique feature for ease of installation; unlike the industry standard design of inputs at the front and outputs at the rear, all LCM-50(DA) I/O connections are along one side of the enclosure. This enables easy access, with efficient use of limited space during installation and wiring.

The supplies feature Class ll design with no frame ground and protection from short circuit and over temperature. International lighting safety regulation certification includes UL8750, CSA C22.2 No. 250.0-08, ENEC EN61347-2-13, and EN62384. Additionally, the LCM-25DA complies with IEC62386-101, 102 and 207 norms for DALI lighting control systems.

“The LCM-25(DA) offers both installers and users great flexibility in meeting the increasing demands of intelligent dimming applications” commented Andy Wall, CEO of Sunpower Technology, “Yet, even with their flexibility and intelligence, these systems can be widely distributed, as the furthest slave can be up to 120 m from the master unit. They can be used for both indoor and outdoor LED lighting applications, including LED decorative, office and commercial lighting – and a three-year warranty comes as standard.”

Visit the Sunpower UK website for more information:



About Sunpower

Sunpower Technology LLP is the UK arm of a Taiwanese manufacturer that additionally enjoys extremely strong bonds with other, highly skilled factories and engineers in Taiwan and China. The company delivers a wide range of standard, custom and bespoke power supplies to businesses and organisations across the UK.

Sunpower Technology LLP is also an Authorised Distributor for Mean Well Enterprises, providing customers with cost-effective and direct access to their dependable and high quality power supplies. These products are complemented by Sunpower’s unsurpassed level of service, support and product knowledge.

Sunpower Technology LLP’s overall range of industrial and commercial power products include DIN rail power supplies, led drivers, industrial power supplies, industrial battery chargers, marine power supplies, ac adapters and plugtops, and sine wave inverters. They are used in rugged, data storage, medical grade, laboratory, EPOS and many other applications. Sunpower’s engineers are highly experienced in producing custom design power supplies and their value added service is focused on giving customers ‘ready to go’ products that resolve all their power supply needs.

Sunpower Technology LLP Ltd's Quality Management System is BS-EN-ISO 9001:2008 certified; its factories are also approved to both ISO-9001 and ISO-14001. The company has been ISO certified since August 1997.

Sales and Technical contact:

Andy Wall

Sunpower Technology LLP

Orion House

Calleva Business Park


Berkshire RG7 8SN

Tel: +44(0)845 533 0438



PR Contact:

Nigel Charig

Charig Associates Ltd,

24 Honister Gardens


Middlesex HA7 2EH

Tel: +44 (0)208 933 0917



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