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Description	light-emitting diode (LED) product that is assembled into a tube bulb for use in lighting fixtures.
Advantages	Produces minimal heat No 'warm up' time Broad color range No toxic materials
Disadvantages	Expensive purchase price Sensitive to voltage and current flow
Application barriers	Certain wave lengths may damage eyes
Information sources	[[Information sources::Source Source Source Source Source Source Source]]
Image
Trade:

Type	Bulbs, Downlights, Floodlights, Outdoor Lighting
Lamp Voltage	12 Vdc
Lumen Output	8-12 W
Voltage	12 Vdc
Lamp Current	1 A
Luminous Efficiency	450 - 2600 lm
Annual Degradation Rate in Luminous Efficiency	Negligable
Color Temperature	2700 / 3500 K
Color	Various shades and colors
Color Rendering Index	0-100
Beam Angle	12-120°
Average Lamp Life	50000 hours
Type of Protection	Lighting and Surge protection
Investment Cost	$35.95
Operational Cost	low (0.10 / kWh)
Replacement Cost	medium
Life Expectancy	50000 hours

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The Design4Energy project aims to address evolutionary life-cycle evolutionary design methodology able to create energy-efficient buildings flexibly connected with the neighbourhood energy system.

BL(Ti)=0.788

1 Lighting 1