This LED COB light panel operates at 30-36VDC at 1 amp, and it’s insanely bright. On a 6" square PC board--a takeout from unused medical equipment--has (3) rows of (5) white COB LEDs. Board is coated, and each LED has a 7/16” plastic bubble over it. There are (6) grommeted 3/16” mounting holes. Has 18”+ black and red leads on opposite sides.
The illumination oxymoron: bulbs don’t need to be bulbous in a world of LEDs. These LED bulbs from Philips have a traditional bulb profile but are 1” wide when turned sideways and still cast a 360-degree light. Draw just 10.5W but shine a 60W equivalent. 800 lumens with a 2700K color temp, which is “warm white.” Standard medium base and yes, they’re dimmable.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.
These would be take-outs from cell phones, if they had ever gotten into
any. As it is, these LCDs are new, and relative unknowns. One LCD
measures 1-1/2" x 1" x 1/16" thick and has connection pads that run
along one of the long edges. The second LCD is 1-7/8" x 1-1/2" and has
surface-mounted components and sundry IC and jumper sockets. It measures
2-1/8" x 1-5/8" x 5/32" overall. Sorry, no pin-out information
This pre-filled PC board has (50) white LED chips on a board measuring 22" long x 1-1/2" wide at its widest, with clearly marked power in/thru jumpers at each end. You’ll need at least 24VDC at 300mA to fire it up. Max is 32VDC 1A, and we don’t recommend staring directly at it when it’s in operation.
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