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This is from my 120w kingbrite (MW HLG-120h-48b): Power is only 115w. The driver outputs 120w. I would assume another 5% efficiency loss so it should be ~126w. The power meter was accurate with a lighbulb I tested. Everything is turned up on the driver. Is the 115w normal?

Looks like I can't edit my previous post but having measured the the temps they are 56.9C on the heatsink and a few degrees less for the PS. My first thought was to put a fan over the light blowing downwards but in a 60x60cm tent I think that will mess up the airflow. Blowing from the side of...

I've been playing with the 125w kb qb288 board. In my setup the temp goes up 3C (26->29C) when turned on. That seems fine but both the heatsink and the driver will burn my skin if i touch them for 2 seconds. This means the temps must be 70+C! I can move the driver outside the tent and add a fan...

Final Price Report to Canada https://www.alibaba.com/product-detail/Kingbrite-KB-QB288-LM301H-indoor-led_62125385218.html?spm=a2700.icbuShop.89.2.702a2dfcXg8PgI $88 + 38(shipping) = $126 US + 23CAD for DHL fee It took a week to come. They declared the light as a small amount for customs. The...

OK! I've been researching for a few days which I summarize here: LM301B and LM301H - The only difference between them is H has anti-sulfurization coating. This helps prevent corrosion.These diodes have the exact same spectrum and same performance. Consider them equal KingBrite vs HLG lm301b...

Forgive my lack area specific knowledge but that graph looks entirely misleading. Both lines should have the approximately the same area below them. Same energy = same area. Well sort of... Shorter wavelengths have more energy but looking at the graph the 90CRI appears to put out more light at...

Thanks but 4 boards wouldn't even fit in a 2'x2' tent haha. I'm trying to keep it simple. According to the datasheets the 3000k 90CRI have a flux of only 32-34 while the 80 CRI ones are 34-40. Not sure why one would want the 90CRI ones. I can't imagine the difference in spectrum would make up...

Thanks for the reply Rocket Soul. I understand we can't be sure of the bins, I'm ok with that risk. I looked into getting the 2 65w boards as opposed to the 1 qb288 but it is at least 50% more expensive... may as well just go with HLG in that case. The 3000k 90 CRI you speak of is for the...

I'm currently looking into getting a 125w Kingbrite qb288 w/ lm301h 3000k. They sent this pic about the bin: They claimed "top bin" sk. Since this shows s0, its a lower bin sk. This package has a flux range (page 8 from Data_Sheet_LM301H_CRI80_Rev.1.2.pdf ) of 36-38 while for the actual top...

I'm not sure if it's 'Lisa' you had a problem with as I think that is a pseudonym and not a real person. My experience with their staff (in person and in the chat) is that 3 of 4 were good. One person (a woman I remember ) I talked to was rude, barely coherent and more than that just plain...

Are you sure it didn't say 45 day flowering period? Can u link a strain that says 45 day life cycle?

This did turn out to be scam/mis-listing. I did get my money back though in the end ------------↑ Probably a scam but 5A variacs on sale on ebay for $20 http://www.ebay.ca/itm/331704466122?_trksid=p2057872.m2749.l2649&ssPageName=STRK:MEBIDX:IT I bought one just for the hell of it. The thing...

For rockwool I'm using 4 wicks made from dollarstore rope that appears to be 6mm in diameter for a 6" by 5" piece of rockwool cut from a rockwool slab. It works fine I've read this several times: Rockwool holds 10 times more water than soil, yet is impossible to over-water. So too much water...

You must be lucky then. I emailed to ask when they would have a product in. After 3 weeks they finally answered and told me it was in stock. I ordered right away. 8 days later they couldn't even give me an ETA of when it might be shipped. I'm still waiting for a refund of which I must pay a 3%...

Well hydroshop.ca is garbage. Long story short, they charge you right away. When/if they will send you the item is a different matter. If you use a a credit card they also charge you 3% to cancel your order (one that they may never even send you!) Here are some...

On aliexpress they have cheap O3 generators that you have to wire yourself $15-25 for 400mg/h to 7g/h units. I'm going wire one up to an Arduino!

Well the listing was pulled so 99% sure it's a scam. But if I do get it I will most definitely update

Probably a scam but 5A variacs on sale on ebay for $20 http://www.ebay.ca/itm/331704466122?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT I bought one just for the hell of it. The thing that gave me hope is that they is an amazon listing of these where people were getting these used...

100 fem seeds for $60? Can you provide a source? mrnice.nl doesn't appear to sell seeds. I would love to get seeds for cheaper, but Crop King has about the lowest prices I've seen in the few seedbanks I've looked at...