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LED beats fluorescent on efficiency

New low-watt Citizen LED light engines from Marl enable the creation of replacements for fluorescent strip lights – offering over 25% better efficiency and at least four times longer lifetimes.

An array of five of the chips matches the light output of a 1.2W fluorescent tube. According to Marl, this makes LED lighting the low-energy lighting of choice – a position traditionally held by fluorescent technologies.

The highly flexible chip-style packaging for the Citizen devices lends itself to the creation of a host of innovative lighting effects. They can be mounted to form circles, squares or other shapes as well as in linear arrays.

Like all LED lighting, the new Citizen CL-824 series delivers directional illumination in a downward cone over a 120° arc. This eliminates wasted light.

Citizen CL-824 series LEDs are ultra-compact high efficiency devices in a robust chip-type packaging. A linear array with certain chips can deliver a final efficiency of 74 lumens per Watt – compared with around 56 lumens per Watt from a typical fluorescent fitting. Rated life for the LED chips is 40,000 hours, compared to 10,000 hours for a standard fluorescent tube.


LEDs can match the light output of all but the most specialist lights and offers a more robust solution than fluorescent. It also eliminates the risk of broken glass tubes coated with poisonous phosphorous based chemicals.


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