Situation: As a becoming next Michelin-level star of home cooking (ok, at least I have not poisoned someone yet with my kitchen skills...) I decided to invest some time in growing some own herbs in my apartment, as I do not have ressources like a balcony etc.
(I do like to use fresh parsley a lot in my dishes, and autumn season calls for some hearty soups)
As some grow light became available on ebay, I went for it- and because "one bank ceased working some time ago", I got it as a defective item for a good price.
After all, with those simple designs, what could have gone bad? Usually one of the LEDs that are working in series or the LED driver itself have some issues, so repair would have been no big deal.
https://www.ebay.de/itm/Meizhi-R50-60-LED-Grow-Light-Pflanzenlampe-Zimmerpflanzen-Veg-Flower-/354314216294?mkpid=0&emsid=e11050.m43.l1123&mkcid=26&ch=osgood&euid=1c37d88037ed4494ae10f424fe453d43&bu=43203972229&osub=-1%7E1&crd=20221018151813&segname=11050&nma=true&si=akV2sregvvVLwo%252FGHm9jcAKxve8%253D&orig_cvip=true&nordt=true&rt=nc&_trksid=p2047675.l2557After opening it, I was greeted by the sight of 16 missing LEDs out of 60- and only the blue and violet LEDs have been harvested by force. (ALL of the blues, every other color present)
Attached pics show that someone ripped them off the aluminum mounting panel, sometimes damaging the copper soldering points.
I am actually not sure if I should accept the challenge and rebuild the panel, learning lots about LEDs and plant grow lights including the spectrum used, or, if the (financial) effort is in no relation to the former going price of about 100 € for the unit, better invest the money elsewhere...
I would appreciate some help in determining the LED types/packaging type, as I seem to struggle to get the right packaging type.
The still existing LEDs have a diameter of 8mm at the broadest plastic packaging point, the middle of the soldering pads has a distance of about 12mm, and the bare metal mounting pad where there is some leftovers of the thermal paste is about 5mm- those LEDs have a power consumption of about 5W.
Also I would appreciate some hints how to fix the broken soldering pads- other than clearing some of the isolation of the copper traces and soldering some wire to them...
Aaand: If someone has some links to good articles dealing with growing herbs like parsley and basil and their lighting requirements, I would be very happy ;-)
Edit: LED Power should be less than 5W, only input wattage would be that high, so rather we are talking about 2-3 Watts per LED here.