螺旋系の蛍光灯の横からのアップ
Energy efficient light bulb
Compact fluorescent light bulb (CFL)
Energy saving lightbulb
colorized x-ray of a compact fluorescent lamp
Illuminated lightbulb
Various types of energy saving lamps
電球の接続部分アップ
Energy saving light bulbs
Energy saving bulb against black background, studio shot
Lit and unlit fluorescent light bulbs on grey background, studio shot
Energy saving light bulb against sky
電灯
Array of illuminated lightbulbs against dark blue background
Low energy, environmentally friendly lightbulb, close-up (still life)
Illuminated energy saving bulb, close-up
Broken lightbulb and energy saving lightbulb
Energy saving lightbulb on grass
Energy-saving light bulb
Energy saving lightbulb above other bulbs
Moth with wings out of leaves arranged on energy saving light bulb, studio shot
Lightbulbs in a row
Piggy bank with fluorescent light bulbs on green background, studio shot
Energy saving light bulb
Energy efficient lightbulb against blue sky
Lit bulb on grass
Energy-saving light bulbs
Canlde and two lightbulbs emitting carbon dioxide (digital composite)
Fluorescent light bulb on grey background, studio shot
電球型蛍光灯
Woman holding low energy lightbulb against black background
A row of energy saving lightbulbs
Light bulb covered in moss
Energy saving lightbulb and other kinds of lightbulbs
Broken Energy Save Light Bulb
Two lightbulbs
Lightbulbs
Normal light bulb versus energy saving light bulb
Man installing energy saving light bulbs
Lightbulb and energy saving lightbulb on kitchen counter
Giant CFL bulb shining on a city skyline
Compact Fluorescent Lightbulb leading the pack
Green leaf lightbulb
An energy saving lightbulb powered by a vine
A light bulb with world map on it
An energy saving lightbulb surrounded by various lightbulbs in circle
Energy efficient lightbulb
Fluorescent light bulbs in grass
Fluorescent light bulb in grass
Fluorescent light bulb dripping in green
Energy saving light bulb, X-ray
Earth lightbulb
Energy efficient fluorescent light bulb and pinwheel
Nature Vein
電球いろいろ
Light trails
Hsinchu, Taiwan, Asia,
Windmill with cable illuminating a lightbulb
Fluorescent lamp recycling
Close up of compact fluorescent lamp
Close up of green fluorescent bulb
High wattage fluorescent light bulb
Normal light bulb versus energy efficient light bulb
蛍光灯
Boy with light bulb by solar panel
boy with energy saving light bulb
girl with energy saving light bulb
Changing a bulb is no problem for her
She's pretty handy around the house
Man repairing a small wind turbine
woman changing light bulb to energy saving bulb
Cupped hands holding a green energy saving lightbulb
Globe, pinwheel and lightbulb
Woman holding a green energy saving lightbulb
US currency in a lightbulb
Businessman with energy saving lightbulb as head
Man holding bulbs
節電のため消灯した蛍光灯
通路の節電蛍光灯
Fluorescent lamps
Colorful Image
電球
Person holding an energy saving lightbulb
省エネ用蛍光灯
天井の古い蛍光灯
蛍光灯の点灯管
虫除け電球
Energy saving light bulb being surrounded by figurines
Light bulb isolated on the white background
Energy saving lamp isolated on the white background
Pink tube light
Woman holding different light bulbs
Woman changing lightbulb
2 women changing lightbulb
Man holding light bulbs
Hand holding energy-saving bulb
Woman holding an energy saving lightbulb growing out of a pot
Man holding an energy efficient fluorescent light bulb
business woman with light bulb in the box
Man holding a green CFL bulb
Boy (12-13) holding energy saving bulb on beach, portrait
Stylish fluorescent lighting
Energy saving lightbulb in a plant
Package on conveyor belt
節電対策の蛍光灯
オフィスの蛍光灯
天井板と蛍光灯
節電のため撤去した天井の蛍光灯
駅ホームの蛍光灯
地下鉄駅ホームの節電消灯の蛍光灯
鉄道の駅ホームの天窓と消灯した蛍光灯
節電消灯した駅構内の蛍光灯
電飾看板の内部の蛍光灯
電灯のスイッチ
Natural Vein
Fluorescent Bulb on Tiled Ceiling
A length of metal, one end red hot and resting on an anvil.
Energy Efficient Lightbulbs against white background, close up
Green Eco-Friendly CFL Light Bulb In Flower Pot