Did I miss a giveaway?
Not begin yet. next month.
Did I miss a giveaway?
The fc 6500 even has a dimmer thats sweet and that coverage is good too .. Why the inventronics drivers ? Are they better than the meanwell ones ?. i love the idea where it folds nice going Mars and 3.0 umol at 650w.
FC3000 is meanwell driver. Other two uses inventronic driver.
We double checked the PPE number and found there is was a mistake in calculation. And we have made the adjustment on our site. We are still in the process to complete the description page of the light. So there are some data should be adjusted too.
Seems Geekbeast pro is a chinese supplier from alibaba. All the LM301H from chinese suppliers are fake. Because samsung only supply LM301H to America local brands. Also, they are only in this market for 2 years but we have been in here for 11 years. Our quality was recognized by most of growers.
Seems Geekbeast pro is a chinese supplier from alibaba. All the LM301H from chinese suppliers are fake. Because samsung only supply LM301H to America local brands. Also, they are only in this market for 2 years but we have been in here for 11 years. Our quality was recognized by most of growers.
Are the Mars lights not manufactured in china? is there actually a difference between lm301H and lm301B?
Interesting. I hadn't heard that about Chinese manufactures and LM301H diodes, I'll have to look into that. On that note, I just heard that there is a new bin Samsung diode coming out soon, which will only be available to HLG due to their special relationship with Samsung. It will be interesting to see that.
Yes, I did already assume it was a Meanwell driver, but I was wondering which series driver. Is it the same series as used in the SP3000? Inventronics drivers are good too, but just saying "Meanwell" or "Inventronics" doesn't really tell me a lot, as both of those companies make hundreds of different types and series drivers, all with different efficiencies.
Sp250 2.0!
We double checked the PPE number and found there is was a mistake in calculation. And we have made the adjustment on our site. We are still in the process to complete the description page of the light. So there are some data should be adjusted too.
OK, so I see you adjusted your specs from 3.0 to 2.8 umol/j, but honestly I still have to question that number. Did you so a sphere test, or are you just relying on math calculations? If you have a test, please share it. If you are relying on math, I believe your math is off. A lm301h diode (you are using the lower bin 301b diodes which do not have ppfd ratings) is rated at 3.1 umol/j, but that's when run at max efficiency of .2w per diode. Your light seems to be running closer to .33w per diode (900 diodes @ 300w total), so clearly not max efficiency (my rough math says closer to 2.85 umol/j at that wattage). Then you have to account for your driver loss, which based on the driver series used will be around 10% loss. So even right there the math says it should be below 2.8 umol/j. My math is saying your real rating would be around 2.58 umol/j, as opposed to the 2.8 umol/j listed. 2.58 umol/j isn't bad, but I am curious about real numbers based on sphere test, not just the math calculations. Please advise.
Yes, here is the sphere test report for FC4800 under 120V.
Yes, here is the sphere test report for FC4800 under 120V.