Business News | Jul 29, 2010

High Efficient Citizen CL-L251 Now Available from Marl

Available in the UK from Marl, the 4.5W Citizen CL-L251 delivers 290 lumens of light output at a colour temperature of 3000K with good colour rendering “Ra85”, equivalent to a standard 20W MR16 halogen. The range is available with colour temperatures up to 5000K, delivering up to 425 lumens from 4.5W. The CL-L251 has a luminous efficiency of up to 106 lumens per watt, compared to 16 lumens per watt for a halogen light. Since the drive voltage of the CL-L251 is 9-10V, the LED can be packaged as a drop-in replacement for the standard halogen light.


In addition to the direct cost savings, the Citizen CL-L251 from Marl provides significant indirect energy and maintenance cost reductions. The LED light emits much less waste heat than Halogen, reducing the load on air conditioning. The LED has a ten times longer lifetime of 40,000 hours or 4.5 years continuous use, compared to typically 4000 hours for an MR16 halogen light.

To download a catalogue enabling easy browsing of the extensive range of Citizen LED light engines available from Marl Optosource, please visit:

About Optosource:
Marl Optosource is one of the UK’s leading distributors of LED components. Optosource offers privileged access to the product portfolios of the world’s leading optoelectronic manufacturers, and can offer a complete one-stop solution to any visible opto electronic component requirement. The new website contains a detailed database on all LED components and accessories including heatsinks, drivers and lenses. Please visit:

About Marl:
Marl has specialised in the design and manufacture of visible LED indication and illumination components and systems for over 35 years, to customers in the electronic, power generation, defence and telecommunications industries. Its highly trained and experienced team of over 100 design and manufacturing specialists operate from a dedicated technology park in Ulverston, England and stand ready to offer its customers a solution to any requirement. They are able to offer a range of standard products, customised to suit individual projects, or even design a specific component from scratch. Marl is a quality company. It is registered to BS EN ISO 9001:2008 standard and fully RoHS and WEEE compliant.