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The new COB (Chip on Board) product line up includes the world's first LED for lighting providing luminous flux of an incredible 17,675lm!

Eleven types, including five packages cover the brightness range from a 10 watt incandescent bulb to a 300 watt mercury lamp. High luminous efficacy of 155 lm/W is also achieved.

Illustration (right): A CLL030-1212A1-303M1A2 light engine customised with flying leads. This is an option readily available to all Optosource customers for Citizen light engines. Other options for customisation include connectors and secondary optics.

Product Lineup

Series	CLL010	CLL020	CLL030	CLL040	CLL050
Type	CLL010-0305A1	CLL020-1202A1 CLL020-1203A1 CLL020-1204A1	CLL030-1205A1 CLL030-1206A1 CLL030-1208A1 CLL030-1212A1	CLL040-1218A1 CLL040-1818A1	CLL050-1825A1
Shape
Size (mm)	9.5 x 9.5 x 1.4	13.5 x 13.5 x 1.4	19.0 x 19.0 x 1.4	28.0 x 28.0 x 1.4	38.0 x 38.0 x 1.4
Colour lineup	* High color rendering type : 2,700K , 3,000K , 3,500K , 4,000K , 5,000K (MacAdam 3-Step) * High efficacy type : 5,000K
Drive (W)	0.8 ~ 6.1	1.3 ~ 19.6	3.3 ~ 58.9	11.8 ~ 132.4	24.6 ~ 183.9
Total luminous flux (lm)	95 ~ 590	165 ~ 1,970	415 ~ 5,780	1,480 ~ 12,915	2,885 ~ 17,675
Applications

A new low profile LED floodlight from Marl lasts up to 30 times longer than an equivalent halogen lamp, and uses over 70% less energy for the same light output. According to Marl, the floodlight has a typical payback period of two years, as well as offering a greatly reduced carbon footprint.

Designed and manufactured in the UK, the new Marl 748 series floodlight is just 10cm deep, but delivers a massive 3000 lumens from an input power of just 56W, equivalent to a 200W halogen floodlight. The 748 series has a rated life of 60,000 hours, equivalent to over 13 years at 12 hours per day. In this time, a halogen floodlight would need to be replaced 30 times, based on a standard life of 2,000 hours. Marl is offering a five-year guarantee on the light.

Commenting, Adrian Rawlinson, Managing Director of Marl said, "Given that replacing a floodlight normally requires the hire and use of an access platform, Marl LED floodlights can be justified financially on the reduction in maintenance costs alone. On top of that, they use significantly less electrical energy."

Marl 748 series floodlights are based on Osram Golden Dragon® Plus LEDs, packaged in a robust die-cast, powder coated aluminium housing protected by tempered glass. The units are weather-proof, being sealed to IP66 standard, and are suitable for operation between -30°C and +45°C. Marl has designed the floodlights in accordance with world-wide electrical safety standards. An optional dusk-dawn sensor can be fitted to bring the light on when ambient light levels drop below a pre-set level. The 748 series is offered in four versions, with medium, wide, and extra-wide beams as well as an oval beam. It weighs just 8.1kg.

View the 748 Series in our Outdoor Lighting products

Marl's new PCB router

Marl International has invested £120,000 in tools for prototype and small batch production, to handle growing demand for its specialist LED lighting assemblies. The investment will allow Marl to turn around prototypes of its bespoke lighting solutions for customers and its own LED lighting products significantly faster. Marl, a pioneer in LED lighting, attributes its success to the fact that it handles the whole process from design to prototyping, volume manufacturing and test on a single site.

The new machining centre and printed circuit board (PCB) router will allow Marl to turn around most prototypes within a week of the acceptance of a design by its customers. The tools produce housings, mechanical parts and circuit boards straight from the CAD (Computer Aided Design) output generated by Marl's design team.

Commenting, Marl Managing Director Adrian Rawlinson said, "Marl's strength is our ability to produce energy efficient lighting solutions for specific customer requirements. Well-known organisations that we have supplied include the Formula 1 Association, British Energy, British Waterways Board, Network Rail and Nokia Siemens Networks. We have also been very successful in engineering our own products to address specific market opportunities, such as infra-red LED assemblies for use by the security forces, and security lights. The investment we have made will allow Marl to be even more agile when addressing these kinds of opportunities in future."

Marl has invested in an LPKF Protomat® S100 PCB routing machine, a Hurco TM6 2-axis CNC (computer numerical control) lathe and a Hurco VM20 3 axis machining centre. The Hurco machines increase Marl's capacity to produce prototype housings and mechanical parts by 50% and doubles the company's rate of mould tool production. Both machines feature a high degree of automation, allowing designs to be built straight from the CAD files generated by Marl's design team.

The LPKF PCB router is a state-of-the art system, which eliminates the need for Marl's staff to handle hazardous etching chemicals. This CNC machine also works direct from CAD files, and can build single or double sided boards with up to two layers. It can produce aluminium clad boards, which is key for designs where thermal management is a factor. Using the machine, Marl can produce a prototype PCB in just a few hours.

Adrian Rawlinson, David Ford and Marl staff accepting the award
Photograph courtesy of The Westmorland Gazette

Energy efficient LED lighting specialist Marl International was named Business of the Year at the Westmorland Gazette Business and Tourism Awards, fighting off competition from companies across South Cumbria, North Lancashire and the Dales. Marl was also presented with The Westmorland Gazette's Innovation and Technology Award.

Presenting the Business of the Year award, Tony Whiteway of sponsors CLB Coopers said, "Marl International is a dynamic and fast growing player in the LED lighting industry, a market they helped develop from its infancy. Marl pioneered a new technology, built up a leadership position, and supplies blue chip companies around the world with energy saving lighting solutions. As a result of Adrian Rawlinson's vision 30 years ago, Ulverston can boast an internationally successful technology business bringing 120 quality manufacturing, engineering and management positions to the town."

Accepting the award, David Ford said, "On behalf of the whole team at Marl, I am delighted to accept this prestigious award. One of our strengths is the fact that all our products are designed, assembled, tested and shipped under one roof here in Ulverston, Cumbria. Marl continues to invest in this team. For example in 2011, we spent £120,000 in new machine tools enabling us to turn around prototypes more quickly and reliably in house."

Marl International was one of the pioneers of the LED industry, with nearly 40 years experience of providing innovative photonics solutions. Marl has now supplied more than 100 million LEDs. Some of the world's first solid state light bulbs were made by Marl in the 1980s and today these are still enhancing the operational performance and reliability of host equipment in countless defence and aerospace applications.