. . .which is another way of saying Splain-a-me.
I replaced 3 Kircher low voltage lights with 4 fluorescent lights. The LV lights had 2-18 watt bulbs, 2- 18 watt bulbs and 4-18 watt bulbs. Total wattage is 72. The replacements were 4 15 watt tubes- total wattage 60.
Why is it that the output form the fluorescent tubes is SO much more than the LV bulbs?
Riddle Me This
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JPG
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Wattage is a electrical power thingey.
Lumens is a light brightness thingey.
With incandescent lamps(light bulbs) the higher wattage ones are brighter. Hence we historically have used the wattage to describe brightness(incorrectly).
Fluorescent lights have always been brighter/watt than tungsten filament lamps.
Lumens is a light brightness thingey.
With incandescent lamps(light bulbs) the higher wattage ones are brighter. Hence we historically have used the wattage to describe brightness(incorrectly).
Fluorescent lights have always been brighter/watt than tungsten filament lamps.
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Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
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Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
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BuckeyeDennis
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Ditto JPG.JPG40504 wrote:Wattage is a electrical power thingey.
Lumens is a light brightness thingey.
With incandescent lamps(light bulbs) the higher wattage ones are brighter. Hence we historically have used the wattage to describe brightness(incorrectly).
Fluorescent lights have always been brighter/watt than tungsten filament lamps.
Per Wikipedia, the efficiency of incandescent lights is about 14 Lumens per Watt. Compact fluorescents are about 63 Lumens/Watt. LEDs are now up to 94 Lumens/Watt, and are still improving rapidly.
So just wear your shades when you fire those babies up .. you'll look cool.
http://en.wikipedia.org/wiki/LED_lamp#C ... chnologies