Efficiency
Low angle view of illuminated light bulb in decoration
Man working at workplace
Low section of couple with illuminated string lights embracing at home
Silhouette woman standing on field against sky during sunset
Low angle view of communications tower against blue sky
Unrecognizable senior tailor attaching fringe to cloth scarf while sitting at table
A man works in a protective mask with metal welding. hand work concept, industry and construction
Front view of man in snow against clear sky
Factory worker wearing uniform working on lathe with drilling machine in contemporary light craftsmanship
Back view adult worker wearing uniform and protective face mask writing on clipboard while working in spacious storehouse
Side view focused female worker in blue vest and face mask taking notes in clipboard while standing near stacks in warehouse
Hiker man on cliff. tourist in red cap, black sweatshirt and jeans.. cold morning sun hiidden
Portrait of woman in illuminated room
Illuminated hotel lights at night
Buildings in city against clear sky
Scenic view of landscape and snowcapped mountains against clear sky
Scenic view of landscape during sunset
Low angle view of electric lamp against blue sky
Midsection of man working
Scenic view of electricity pylon on field against sky
Defocused image of illuminated lights at night
Close-up of gem under microscope
Low angle view of street light against sky
Railway signal amidst railroad tracks against sky
Cropped hand of person holding light bulb against sky
Midsection of person making heart shape with illuminated lights
Side view of woman leaning on glass railing against illuminated city at night
Railroad station platform against clear sky at night
High angle view of shipping containers port illuminated at night
Workman in protective uniform installing modern solar panels on roof of industrial building
Portrait of woman blowing bubbles against illuminated lights
Surgeons during operation
High angle view of townscape against sky
Road amidst silhouette landscape against clear sky during sunset
Aerial view industry factory oil and gas chemical tank and oil refinery and mountain at twilight
Man examining the system in factory
Aerial view ro-ro ship loading new cars. automotive container carriers sailing on the sea export
High angle view of ship on sea shore
Supercell thunderstorm and lightning bolt with dramatic storm clouds.
Retro light bulbs hanging in department store, with decorate interior luxury
High angle view of buildings against sky
Crop anonymous beauty master shaving beard of client with straight razor during steam vapor treatment in hairdressing salon
Close-up of person preparing food
Cropped image of female artist making tattoo on male customer hand
Side view of young female customer shopping in store
Low angle view of illuminated light bulbs hanging against clear sky
Close up cables
Portrait of male worker carrying chain while standing against rolled up steel sheets at factory
Cropped hands of man cutting metal in workshop
Unrecognized luthier woman in traditional workshop
Midsection of woman making cigar
Scenic view of road by mountains
Low angle view of suspension bridge against cloudy sky
Cropped hand of manual worker making window frame at factory
Full frame shot of multi colored lights against black background
Old woman gardening on balcony
Side view of busy male hunter adjusting compound bow with arrow while standing in garage and preparing for shooting
People manufacturing glass
Mother nature speaking
Midsection of woman holding illuminated led lights in darkroom
Cropped hands of tailor marking jeans with chalk on table in workshop
Low angle view of silhouette overhead cable cars against orange sky during sunset
Rear view of woman standing on street against locomotive at dusk
Aerial view of roro vehicle carrier vessel parking for loading car at sea port.
Midsection of person preparing food
Large shipyard and maintenance on the sea at night laem chabang thailand aerial view
Low angle view of lightning against sky at night
High angle view of dam by a mountain lake against a mountain
Cables against building in city
High angle view of traffic on city street and parked trucks with cargo container
Pylons of high-voltage power lines in the mountains, snowy mountain peaks and blue sky
Illuminated railroad crossing at night
Man working on construction plan
Panoramic view of lake grimsel, switzerland.
Aerial view of snow covered mountain range against sky
Defocused image of illuminated lights in city at night
Midsection of person holding mobile phone
Illuminated light trails in city against sky at night
Close-up of person measuring shoe
Low angle view of buildings against clear blue sky
Bottom view towards the aguilles du midi
Low angle view of birds perching on cable against sky
Low angle view of street light against clear blue sky
Close-up of illuminated light bulb
Low angle view of illuminated lanterns in corridor
Man working on metal structure in factory
Low angle view of illuminated lighting equipment and buntings hanging against sky at dusk
External wall insulation. renovation of a new building
Aerial view of illuminated city against sky at night
Defocused image of illuminated lights at night
Cropped hands of woman weaving loom in workshop
Lightning in the night sky. thunderstorm over the city. stormy dark clouds and rainy weather.
Close-up of metallic equipment
Cropped image of man holding illuminated string lights on field
Close-up of electric lamp on wall in building
Worker controlling machine while working in steel industry factory
Empty road leading towards mountains against cloudy sky
Road leading towards snowcapped mountains against sky
Close up photo of the metal machine in the laboratory
Illuminated cityscape against sky at night