Lights

Thanks. I was thinking on the mars 1000 led on sale, but again i believe cobs will give me more light capacity. Any cheap good brands? Will DonaldTrump sponsor me? Happy grow🌱🌱

CoB is a type of LED. The best LED lights have a base of Samsung LM301B midpower diodes. 3000k, 80CRI if it has some far red, even better, but the 3000k. Best way to compare 2 lights is the efficacy rating - umol/J -- essentially photons per watt. multiply this value by # of watts, and you know the lights umol/s value is... or going the other way umol/s / watts = umol/s per W/S (J/s = W/s so it is umo/J when simplified). comparing efficacy will lead you to calculating cost savings per month and an simple break-even analysis as to whehter you actually save money with the cheaper fixture and lower efficacy. Longevity is another concern. 50-60k hours before 80% intensity is a good goal. If it doesn't state th eintensity of 80% part, assume they are using a different point that exagerrates actualy likely length of use. heat dissipation is the last element to consider. make sure it runs near 25C or you don't get the advertised efficacy. a simple fan is usually enough for the better lights, if you need one at all.