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These DOB "driver on board" leds are really cheap, but you get what you pay for. I've been using them for two years now and they work fine, but lm/W is really low ~80 and PPF/D PAR efficiency is half than other COBs, most of the electricity goes out as heat. If you don't mind the electricity...

Thanks @Rocket Soul for confirming my understanding. According to the spec CRI should stay the same regardless of power which is good. Optimally one would aim to get larger COBs and run them "soft" but the price difference per COB seems to be much higher when compared at "nominal" levels as $/mA...

Hello, I've been reading Bridgelux specs for the past two days and have a question about the nominal power and maximum power. I'm on a budget for tomatoes growth only and I found would I believe would be a good fit for my setup. BXRE-30G3000-D-83 , V15D - Gen 8 series. This one is very "cheap"...

Hi, some final thoughts before i order my new COB setup. As previously asked, i only have tomatoes and peppers so don't need the full lm power, i understand that CRI and spectrum would be more important. Based on price and availability from digikey, i've identified two COB options that will...

Thank you so much for this recommendation, it's also on stock at digikey where i will be ordering some other stuff. @Rocket Soul , how does one adjust V on the XLG? By using the 100K pot on the 3in1? What do i need more to be able to set the voltage on HLG-240-h-ab?

Fantastic support, thanks! I'm in Europe on 230V so it should be safe to use the cheaper ELG series. Seems that A version is preferable over the B version as the current and voltage can be adjusted on the unit. Is it safe to assume that B version is set to 36V default and V can only be lowered...

I'm about to order MW ELG driver and I'm not sure if I understand all the differences between A & B versions. A version lacks the 3in1 dimmer that B version has but there are manual regulators on the unit. Are these regulators on the main unit of A version regulating both output current and...

I'm hand pollinating by using an old electric toothbrush, vibrating on the flower stem :) I've tested 8 dwarf varieties in hydro but have now chosen only 2-3 of them that have good resistance and size with many flowers and fruits. 35L / 7,5Gal buckets with Kratky , but i do change the whole...

I'm also considering alternative with 2-3 x 280mm EB Series™ Gen 3 Thrive stripes per each bucket. These two will probably provide enough light for each plant , or I might even go with three of them per bucket. The buckets are 400 mm so three stripes next to each other would be around 30W of...

Thanks, the Vero 29s seems to be too powerful per single plant, but maybe I'm wrong. My coolers are rated at 70W TDP which should be more then enough even for Vero 29s and i probably could use the cheaper MW LRS-150-48 to power those, was thinking to use the 36V version before. How about the...

Hi, new to this forum but have read a lot and appreciate the expertise here. I only have vegetables in hydro and my setup is 8x2,5 with 10 buckets of dwarf tomatoes and some other smaller herbs and peppers. I hope I still qualify as grower :) I'm using today the cheap Yxo 50W DOBs 3500K and...