20W G4 Halogen LED Replacements

Gdetrailer wrote:
I am assuming you have small "puck" type light fixtures?

Perhaps take a look at THESE LEDS, they are not as cheap as most folks here like to brag about at $4.17 each but they make up for that in the very compact size and are extremely BRIGHT.

I was looking for LEDs which could fit in the small under cabinet puck lights I have and not be like a dim nightlight..

The LEDs in the link uses six 5730 .5W LEDs with a constant current regulator and can operate from 8V-30V safely.

Each 5730 is rated at 55-60 lumens so the light has a potential of 330-360 lumens per HERE.

12V 20W G4 pin Halogens actually are rated at 350 lumens per HERE and Xeon versions may have a lumens as low as 200.. per HERE

At 12.0V I measured the light drawing .140A (140 ma) which is 1.68W draw. Since this light uses a constant current regulator it will operate as "buck" or "boost" and as the input voltage rises the light will draw less since the regulator will go into "buck".

I put it head to head with a 20W G4 Halogen bulb and the LED was pretty much a dead heat for brightness. The Halogen was just a slight bit brighter but ever so slight.

The circuit board measures just under 23mm (about 7/8"), I did have to trim the pins a bit as they are supplied longer than needed.

If you need back pin instead of the side pins they do make them, just search Amazon for that brand name.

One warning though, they come from outside the States and will take a few weeks for shipping time (Amazon noted about 4 weeks but they showed up in 2 weeks).

As far as longevity goes, the jury is out, I have not had much time to run them since I got them only a month ago (hopefully they will last longer than other white LEDs I bought years ago which was only a few days of use)..