18485183 A woman with a stroller against the light, Sweden.
16251549 Wooden Desks Being Stored
15429883 window with curtain and clothing hanger during night
18340995 People on Moving Sidewalk
10296091 Workers in protective masks and suits in laboratory portrait
17049188 1970S Narrow Galley Style Kitchen With Dark Wooden Cabinets And White Appliances
18370657 Man sitting on motorcycle
18338728 Office Chair and Two Women
12189799 Thermal image comparing energy efficient CFL and LED lightbulbs.
10534692 Lavender soap with lavender flowers, close-up
9891464 Compact Fluorescent Light Bulb
7843576 A New York City building as seen from the inside of a bus. The lights are in the bus. USA
12588195 People on Escalator
10748170 Businesswomen in an Office
18340206 Laughing Mature Businessman Sitting at Empty Conference Table
18342128 Young Business Man
10748237 Businessman Standing in a Corridor
15429887 pedestrian door in a parking garage with head lights from a car
10749044 Businesswomen in an Office
12680907 Cyclist in tunnel at night
18309380 Closed Doors in Corridor
16457981 Several flowering Grape hyacinth, Muscari
12340495 Man looking into empty fridge
18338167 Energy Saving Lightbulb
15223252 Empty Apartment Building Basement
10922508 Woman Putting Lightbulb in Lamp in Furniture Store
12343929 Shopping trolley in supermarket
11066662 Close-up of inside of Kiwi Fruit
18466965 Orchids, close-up.
16368400 D-Greding, Schwarzach, nature reserve Altmuehltal, Franconian Alb, Middle Franconia, Franconia, Bavaria, city fortification, ...
D-Greding, Schwarzach, nature reserve Altmuehltal, Franconian Alb, Middle Franconia, Franconia, Bavaria, city fortification, town wall, church Saint Martin, Romanesque basilica, catholic church, defence tower, meadow, spring blossom, evening mood
11330934 High Efficiency Light Bulb
17929050 Energy efficient light blub with blue tone effect
16897607 Florescent light highlighting number 29
18312888 Intensive care unit
10540356 Usambara violet, Saintpaulia ionantha
18489004 Rhododendron in a mountain scenery
18371892 Female Friends Riding Subway
16251476 Empty Metal Shelves
16196827 Glass office hallway
14265452 White amaryllus flower in detail
10540438 Orchid plant on table, elevated view, close-up
11330939 High Efficiency Light Bulbs
18308441 Fluorescent Light bulb
10890844 Woman Speaking on Cell Phone
18488343 The silhouette of flowers on a meadow against a sunset, Sweden.
10748602 Businesswoman at Her Desk
11726329 Compact Fluorescent Lightbulb with Incandescent Lightbulbs
10533982 Yellow flowers, dandelion
18441671 A manor house with a garden, Sweden.
11726305 Painting of a Compact Flourescent Lightbulb
12472465 Businessman adjusting his necktie
10938910 Compact Fluorescent Light Bulb
18467502 Empty Office with Dirty Carpet
18476996 Purple flowers, close-up
18366313 Close Up of Skyscrapers
10749724 Businessman in a Cubicle
18479258 Small pasque flower, Gotland, Sweden.
10833318 AmerenUE demonstrates the advantages of using compact flourescent light bulbs at an event in Overland Saturday.
10945761 Energy Efficient Lightbulb
18442108 Cherry tree, Stockholm, Sweden.
18482485 Martagon in a garden, Sweden.
14799892 A fluorescent light set in the roof
18317594 Tending to Plants in Greenhouse
11330933 High Efficiency Light Bulbs
14264082 White amaryllus flower in detail
10579419 spring blossom near Sipplingen, Lake Constance, Southern Germany
18489946 Rhododendron in a mountain scenery
10549737 Woman with feet up in meadow, low section
10749031 Businesspeople in an Office
18475391 Early blooming, England.
18479570 Street light, Norrkpoing, Sweden.
19919463 Potted plant on cabinet in office
14255138 2nd Street tunnel in Los Angeles
10539313 Meadow in the summer, Bavaria, Germany
10901405 Close-Up of Fiber Optics and Circuit Board
10959532 Toronto Skyline Above Gardiner Expressway, Ontario, Canada
10959534 Toronto Skyline Above Gardiner Expressway, Ontario, Canada
18338837 Building Interior
15429880 car and bicycle in a parking garage
10960735 High School Hallway, Boston, Massachusetts, USA
18371644 Energy saving lightbulbs
17811842 Lights in Industrial Building
18383758 Woman with Glasses and Neon Light
10536030 Rape-seed field, Bavaria, Germany
18383754 Woman with Lighted Circle
18357192 Couple Sitting by Flourescent Light
15791873 Energy efficient bulbs
9616259 Businessman walking beneath florescent lights
18482237 Dew on grass, close-up.
11330929 High Efficiency Light Bulbs
10945763 Energy Efficient Lightbulb
10540363 cornflower, Centaurea
19100357 Senior man checking energy
10748658 Co-Workers Talking
10054016 Compact Fluorescent Light Bulb on Ladder
18477412 Flowers in garden
18383759 Woman with Lighted Rectangle
18477399 Sunflower, close-up
10053567 Boy Holding Light Bulb Ice Cream Cone
9890724 Compact Fluorescent Light Bulb on Grass
16169350 Germany, Constance, Lake Constance, Baden-Wuerttemberg, D-Constance-Litzelstetten, Mainau, island, Gaertnerturm, Gardener Tow...
Germany, Constance, Lake Constance, Baden-Wuerttemberg, D-Constance-Litzelstetten, Mainau, island, Gaertnerturm, Gardener Tower, castle tower, baroque, castle gardens, springtime, blossom, tulips
18487583 Flowery meadow against the light, Gotland, Sweden.
18371823 Headset on Floor of Empty Office
18314452 Restaurant kitchen
16254098 Empty Metal Shelves
12584703 Lights in the airport building.
16194842 Contemporary office auditorium
10748667 Businesspeople in an Office
11268225 Plasma ball demonstrating an exhibit in Launch Pad, 1992.
10540445 Fruit bowl with apple, orchid in foreground
18486694 Small pasque flower, Gotland, Sweden.
18336993 IV bag in a hospital room
20617190 Industrial Pipes in Public Waterworks.
11728490 Compact Flourescent Lightbulb and White Tulips
16198824 Person walking down a minimalist office hallway
11353455 House made of Light Bulbs
18442750 Flowering lilac against the evening sun, Sweden.
15588118 Hands holding energy efficent lightbulb
17929051 Energy efficient light blub with blue tone effect
18311645 Exit Sign in Subway Station
18270799 2nd Street tunnel in Los Angeles
10715781 Computer projector on ceiling
17118926 Close up of low energy light bulb
16034835 Compact fluorescent light bulb
10540439 Orchid against temperature controller
18483804 Flowers and trees in field
18338161 Energy Saving Lightbulb Covered with Green Paint
18477392 Colourful flowers in garden
10748311 Woman Changing a Lightbulb
10749085 Businessman Holding a Telephone
11726332 Person Holding Compact Fluorescent Lightbulb near Incandescent Lightbulbs
18481679 Flowers in a white vase, Sweden.
18476514 A man watering a plant.
10715834 Potted plant on cabinet in office
15623455 Compact fluorescent bulbs
18446093 Apple-blossoms in the evening light, Sweden.
18486272 Cherry blossom hanging over water, Japan.
9761246 Energy Efficient Lightbulb
12345097 Energy saving bulb
18470424 Close-up of pink flower in evening light
18482236 Dew on grass, close-up.
10540360 Carnation flower, close up
10749755 Businesspeople in an Office
18342600 Man Under Fluorescent Light
10909157 Blue Christmas Lights
16486520 ´Energy saving´ light bulb
12627273 Cyclist in street at dusk
12345096 Energy saving bulb
18465784 Textile Shop Selling Vietnamese Silk
19705952 Gurneys in Hospital Hallway
10887690 Hydroelectric Generator
18489241 Rhododendron in a mountain scenery
10540353 flora, Schlumbergera
11538478 Puzzle Piece and Heart Shape
20502032 Stairway and Subway Tunnel,Original caption: Stairway leading to Seoul's subway system.
18315168 Figure behind cubicle wall
10540361 cornflower, Centaurea
19919432 Computer projector on ceiling
16194848 Open door in an empty office
10908510 Hospital Examination Area
18485863 Cherry blossom on a tree.
11332229 Hand Holding Compact Fluorescent Light Bulb
18383755 Woman with Lighted Circle
10540350 Flowers in wild, coneflower (Echinacea purpurea)
18479653 A hyacinth, close-up.
12594928 Door of a men's lavatory
11330926 High Efficiency Light Bulbs
10867970 Interior of Building
16879154 Close up of stuffed fox’s head with open mouth in florescent green light
16200715 Glass office hallway
10960734 High School Hallway, Boston, Massachusetts, USA
12339626 Businessman walking on street
11353460 Light Bulb Houses next to Windmill
18479751 Cherry blossom on a tree.
