OK, $1.08 per year at average usage, but what can you buy with eight cents anyway? This standard-base 120V LED light bulb illuminates like a 60W incandescent but draws just 9W. Rated for 675 lumens with a 2700K soft white color temperature. Instant-on and dimmable, with a 15K-hour lifespan. UL.

Our each is a pack of (10) common cathode 5mm dia red/green/blue LEDs. Clear lens, 20mA rated for 100K hour life. 3V supply will work for all. You also get 100 Ohm and 510 Ohm resistors to step down 5 and 12VDC respectively. Luminous intensity is 4,000 mcd.

These LEDs are wired with an in-line diode on one leg so you can run them with either AC or DC. 24 volts works best (do not run them on 120V!) drawing 4mA. You'll get leads between 4" and 9" with quick-disconnect terminals. You pick yellow or red.

This tiny 3 mm LED sits in a 5/32" x 1/4" x 7/32" black-plastic box with PC board mounts. At 2-3 volts it glows green and draws 40 mA.

You decide. This panel-mount indicator light has a 5mm red LED in a 5/16” dia x 3/4” deep mount with 47” leads and a 2-pin 5.5mm Molex connector on the other end. Includes wings on the mount to hold it in place. You'll need 20mA at 3VDC for power.

We couldn’t think of any clean jokes for this part, so just add your own. Meanwhile, this little, 1/4” dia, bright white COB LED is mounted on a 3/8” square PC board. Requires 70mA at 9VDC. Our in-house Fire Prevention & Ophthalmology Team suggests a heat sink as well as indirect viewing.

Is mighty bright, actually, and warm white. Our COB LEDs are 5/8" dia, mounted on PC boards that measure approx 1-1/8" x 3/4". Nominally rated at 32VDC up to 1A, with heat-sink backings. Best with a constant current supply, which will draw 170mA or use a current limiting resistor and a heat sink.

An assortment of (10) COB LEDs between 1/4” and 5/8” dia, mounted on small PC boards with solder pads marked for polarity. Nominally 32VDC 1A. As always with these, use a heat sink!

Like the smartest kid in class, this little PC board is crazy bright with (8) 1/8” dia warm white LED COBs. Clearly marked pads for power inputs. The whole shebang is just 7/8” dia with 3/32” mounting divots. Requires a heat sink and a current-limiting resistor.

The lighting biz just gets smaller and smaller. This intense 5/16" dia COB LED is mounted on a 1-5/8” dia printed circuit board with a 2-pin 3/16” ID Molex connector for power. (marked for polarity). Nominally rated for 1A at 32VDC. Compare our price, we dare ya.