So I want to hear people’s opinions on COB LED’s vs QB LEDs. I currently am running 4 100 watt COB LED’s with 2 Citizen 50 watt chips in each light. The biggest difference between the COB’s at this point that I can find is the chips in them but I am not terribly educated in terms of electronics or much in terms of lighting I’ve been doing lots and lots or research but hey only so much I can try to learn at once. The Cree and Citizen chips really seem to be the better chips for the COB’s as far as I can tell but again thats from an uneducated standpoint. They also seem to be a bit more expensive than some of the kits you can get for the QB LEDs which seem to be very popular. The QB LED kits can have a great wattage output for the actual wattage input and they have and they can have a dimmable driver which can be very nice. I’ve been looking at some of the HLG 260 xl kits which seem to be very popular with many on this forum including @dbrn32 and other places on the net. These seem like very good options but I’m not terribly familiar with the benefits of the QB LEDs vs the COB lights. Is there anyone who has used both of them and has an idea of lifespan differences and of the efficiency of both of them compared to each other? Is there a big difference is electricity usage?(I can’t imagine there is a terribly big difference other than possibly the COB’s tend to also have fans built in for cooling the LEDs as well?) Also what about heat? I’m guessing that the QB lights get a bit hotter than the COBs because they are attached straight to a heat sink without a fan but they also have the benefit of being able to move the driver outside of the tent to try to take some of the heat out that way which is a nice benefit as well.
I feel like for some reason COB lights tend to cost more. I’m not sure if it’s because the tech for those lights to make them cheaper just hasn’t caught up or if they are just worth more for some unknown reason to me?
So basically I just want to know any opinion on these lights what people are using and why? If they have had very good or very bad experiences or done any diy COB or QB builds that were very easy and could be duplicated by a novice. Any input from people who know anything about all of this would be greatly appreciated. Hope everyone is doin good. Thanks in advance