L70 is the industry accepted standard for “usable lifetime “ of a Solid State luminiare.
L70 is defined as the number of operating hours at which the LED reaches 70% of its initial lumen
output (Luminiare output measured at steady state temperature). Kichler engineers its
LED products as a complete system. If Kichler luminaire is rated for 40,000 hours, all
components have been rated and tested to that life rating. In many instances, the LEDs could
be rated for an L70 of 50,000 hours or more, but it is important to understand that it is a
Kichler’s LED Landscape products are designed to operate for 40,000 hours in ambient
temperatures from -40°C to +40°C (-40°F to 104°F) continuous.
Kichler has specifically designed the landscape products around the requirements and benefits of
the LED chip as well as chosen chips that are best suited for the application. By
developing dedicated accent fixtures and not retrofitting existing products with “pre-designed
modules”, the fixtures can take best utilize the LED advantages.
LED fixtures create light far more efficiently than incandescent, meaning there is less heat
created. Although LED fixtures will never generate the heat that an incandescent or halogen
will, the Kichler LED accent fixtures will still effectively melt snow. Kichler uses the
housing to heat-sink the LED; even at -20°C (-4°F) the surface of the fixture will be approximately
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