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)
how do u safely remove the flourescent part of the cfl w/out breaking the bulb or seal? otherwise u expose yourself to mercury.
mjt11860 4 months ago
@mjt11860
I dont know, probably I will threw from the high place and later I will work wit her :) hahahaa
macobt 4 months ago
yes its a bright light!!!!! wel done :/
pitdog2010 8 months ago
@pitdog2010
Thanks :)
macobt 8 months ago
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)
superdau 8 months ago
If you're making a lamp for 120 volts, what kind of resistor do you need?
HoneycombAgent 9 months ago
@HoneycombAgent
for 20 leds in serial,and for 120 volts you will use about 4k ohms 5 watt resistor
macobt 9 months ago
Nice.
BurtBartlow 9 months ago
awesome work. thanks for showing
RODALCO2007 9 months ago