Make led lapm from old CFL buld and led's AC220 (total cost 1$)

Very energy efficient light bulb, made ​​of old neon CFL and 20 white LED diodes.
The conection between led diodes is serial,and it use just the bridge rectifier and 5Watts resistor of 10K ohms.Total cost 1$ :)
The diagram you can see it on my blog spot:
http://macoprojects.blogspot.com/

Or watch this video with explanation for this circuit:
http://www.youtube.com/user/RODALCO2007#p/search/5/gbB1rnQnrew
Thanks to RODALCO2007

Category:

Science & Technology

Tags:

• AC220

[mjt11860]

how do u safely remove the flourescent part of the cfl w/out breaking the bulb or seal? otherwise u expose yourself to mercury.

[macobt]

@mjt11860

I dont know, probably I will threw from the high place and later I will work wit her :) hahahaa

[pitdog2010]

yes its a bright light!!!!! wel done :/

[macobt]

@pitdog2010

Thanks :)

[HoneycombAgent]

If you're making a lamp for 120 volts, what kind of resistor do you need?

[macobt]

@HoneycombAgent

for 20 leds in serial,and for 120 volts you will use about 4k ohms 5 watt resistor

[superdau]

Please remove the "very energy efficient" from the description, because this "bulb" is quite the opposite of it! It draws 5 Watts to light just 20 LEDs. 20 mA LEDs have 2 Lumens max (much less if you buy cheap ones). So this construction has an efficiency of 8 Lumens/Watt max. Even your good old incadescent can beat that!

(and I'm not even talking about safety issues here)

[BurtBartlow]

Nice.

[RODALCO2007]

awesome work. thanks for showing