I am working on my kids school assignment, and they required to explain how much energy in kWh the new LED light bulb produces. Can anyone help please?
LED’s and LED Bulbs do not produce energy. LED’s consume electrical energy and convert it into heat energy ( about 75% ) and light energy ( about 25% ).
PPtk
I am working on it! 
From school and wiki; 1w converts to 683 candela in the SI system.Real world,you lose
a lot,like PPtk says above.
Leslie,
I’m guessing what you’re asking is “how much light” does an LED lightbulb produce? The typical LED bulb sold commercially is specified to meet the equivalent incandescent bulb. A new LED 6W bulb is equal to a common 40W incan bulb, both produce ~ 600 lumens [all approximate]. You can find LED lighting w/ lower or higher outputs, all are designed to replace an equivalent incandescent bulb. Hope this helps.
Wow, you guys are a tough crowd lol
a 10W bulb uses 0.01KW per hour. alternatively, 1 kwh (about $0.12 at my house) every 100 hours, and 87.6kwh/year (~$10.5).
This sentence is wrong.
That’s how many Wh it uses per hour.
or it is travelling in time?
Wh/h=W. Is it that difficult?
troll alert lol
per = to each, in each (used in expressing ratios of units)
That’s exactly how kwh works. kwh=kw multiplied by hours. Simple.
are you having a bad day and just want to argue?
are you trying to clarify something for the OP? your responses seem curt - not helpful.
those were rhetorical questions. unsubscribed.
Wow! thanks a lot for this… is there any reference for this stuff?
This is a rather good reference
http://www.cree.com/~/media/Files/Cree/LED%20Components%20and%20Modules/XLamp/XLamp%20Application%20Notes/XLampThermalManagement.pdf
Well, Vieplis is right though.
1 Wh = 1W * 1 h, thus “1Wh per hour” is by definition 1W,
and “W/h” (Watt per hour) does not make any sense in this context.
He is indeed.
I cringe when one of my work colleagues tells me that his car fridge uses “5 Amps per hour” Of course, it draws 5 Amps. If it was switched on for an hour, it would have used 5 Ah.
It reminds me of the old Emo Phillips story, when he was stopped by the highway patrol.
Cop: “You were doing 80 - the speed limit here is 50 miles per hour”.
Emo: “But I wasn’t going to be out that long!”
Now thats funny, joke thread worthy funny
guys have tell the truth,KWH is the unit consumption of energy. You may get it now 
Only mass-energy is conserved not mass or energy alone. The Sun produces energy from mass.