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• Use light emitting diodes (LEDs) to generate light.

• What are LEDs?– LEDs are semiconductor diodes that

generate light when current flow from positive to negative junction.positive to negative junction.

+ ‐

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• Green qualities of LED lights:– High energy efficiencyHigh energy efficiency– Non-toxic– Reduced wasteReduced waste

• Excellent color quality• LED light comes on instantly• LED light comes on instantly• Emit less to no heat

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• Energy efficiency of lights= Light output (lumens (lm)) / Electric power (watts (W))

• Higher the ratio, more energy efficient.L i d t t li ht t t• Less power required to generate light output.

Type of Lights Energy EfficiencyLED Light 80 to 110 lm/WLED Light 80 to 110 lm/WIncandescent 14.2 lm/WFluorescent 60 lm/WFluorescent 60 lm/W

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• LED light most energy efficient• With same light output LED light bulb consumeWith same light output, LED light bulb consume

– 87% less electricity than incandescent– 45% less electricity than fluorescent– 45% less electricity than fluorescent

IncandescentIncandescentFluorescentLED Light

Electricity consumedElectricity consumed

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• Reduce 1/3 of U.S. electricity use for lighting by 2030.Save 348 billion kilowatt hours– Save 348 billion kilowatt hours.

13.40%

2008 Electricity Use4 47%

2030 Electricity Use13.40%

86 6%LightingOther

4.47%

95 5%LightingOth

• 1/3 less electricity use = less power plants

86.6% Other 95.5% Other

• 1/3 less electricity use = less power plants– Eliminate 44 1000-megawatt power plants

• Less power plants = less greenhouse gas emissions– Eliminate greenhouse gas emissions equivalent to 47 million cars.

Information provided by US Department of Energy (DOE)

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CO2CO2

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• LED light reduce your electricity billsH h i i l t i it bill?• How much savings in electricity bill?

Based on $0.15 per kWh electricity rate and 35,000 hours operation (average life of one LED light bulb)

Light Output (Based on incandescent with

LED LightBulb (from Green Supply)

IncandescentElectricity Bill

Electricity Bill Savings Using LED Lightthese wattage)

pp y)Electricity Bill

LED Light Bulb

25W $15 75 $131 25 $115.5025W $15.75 $131.25 $115.5040W $26.25 $210.00 $183.7560 W $36.75 $315.00 $278.25100W $63.00 $525.00 $462.00

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• LED lights are non-toxic and recyclable.

• Fluorescent lamps contain mercuryMercury is highly reactive toxic heavy metal when inhaled or– Mercury is highly-reactive, toxic heavy metal when inhaled or ingested can cause damages to central nervous system, brain, kidney, reproductive systems and even lead to death.

– Fluorescent lamp need to be disposed properly as hazardous waste.– Compact fluorescent light bulb contain 3 to 5 mg mercury.

Fluorescent tube light (4 foot long) contain 12 mg mercury– Fluorescent tube light (4-foot long) contain 12 mg mercury.

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• Longer operation:– LED light bulb: Average 35 000 to 50 000 operating hours– LED light bulb: Average 35,000 to 50,000 operating hours– Incandescent light bulb: Average 1,000 operating hours– Fluorescent light: Average 10,000 operating hoursg g g

• Reduce waste with longer operation:– 1 LED light bulb last 35 times longer than incandescent and 3.5

times longer than fluorescent – Less LED light bulbs in landfill!

HazardousWasteWaste

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Green Supply website:http://www.agreensupply.com/pages/Green-Lighting-%252d-LED-Light.html

Green Supply LED Light Products: htt // l / t i /LED Li ht/http://www.agreensupply.com/categories/LED-Light/

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Thank you!Thank you!

© 2010 Green Supply, LLC