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(Light): low energy fluorescent compact light CFL 12V DC twin tube on desk with copper crocodile clips closeup 1 DHD.jpg
D=2007/06/02 [Jun 2, 2007]; S=3MB, 3264x2448; T=JPEG image [MIME:image/jpeg].
FREE to download and use! (c) Damon Hart-Davis

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Key: D= file date of exhibit; S= size in bytes, XxY pixels, etc; T= type of exhibit; L= location/time or viewpoint of exhibit (if known).

• low energy = low power, high-efficiency, efficient, "green" = Typically LED or CFL, such "low-energy" lighting is many times more efficient (in terms of light output power for given input electrical power) than "standard" incandescent tungsten-filament bulbs, which of necessity must get very hot and generate a lot of heat.
• low energy fluorescent = An electric current from the lamp's ballast flows through the gas (which includes toxic Mercury/Hg) contained in the tube of a fluorescent lamp, producing UV (ultraviolet) light which then excites a white phosphor coating on the inside of the tube, which in turn emits visible light.
• low energy fluorescent compact = CFL, Compact Fluorescent Lamp

• closeup = close-up/macro; tightly framed and imaged at a relatively large scale

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