Replacement LED light Fixtures -

jodeb720 wrote:

GDE - I'm with you on the replacement bulbs. It's so hard to find the brightest LED's out there. Any suggestions on SMD types of panels? I'm wondering if they've gotten around to COB's that are just solid luminous panels that give off a ton of light.

josh

This is a monumental task.

LEDs dies come in a vast array of sizes and wattages and different efficiencies.

Common SMD LED dies used by most LED bulb manufacturers are 5050 1/4W size and they are dirt cheap.

The ones I have found to be the most potent are bulbs using 5630/5730 LED dies which are 1/2W LEDs with higher efficiency than 5050 LEDs per watt. Physically larger than 5050s and typically most LED bulbs will use many less 5630/5730 chips than the ones with 5050 chips.

5050 LEDs typically have 80 lumens per watt efficiency.
5730 LEDs typically have 100 lumens per watt efficiency.

As I mentioned, typically LED bulbs are rated as equivalents to incadescent but this tends to allow manufacturers way overstate the actual brightness.

With LEDs what you are looking for is the actual wattage draw at the voltage you are needed.

Typical 20W equivalent 12V LEDs draw as little as 1.5W to as much as 3W with a brightness of under 200 lumens up to 350 lumens respectively.

Sometimes you will see ones rated as 20W-30W equivalent, those most likely will be brighter than ones rated as 20W equivalent since they are being rated to replace up to a 30W incandescent bulb.

What you want to look for is the ones drawing 3W at 12V which is about .25A (1/4 Amp).

The ones drawing 1.5W will draw .125A (1/8 Amp) and will not be as bright as a 20W incandescent.