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:peace: (: - Sorry - I think that`s not true. The minimum power that the refrigerator will need - is the amount of heat power that you fill in. And this can be ~ 60% of your electric input. i.e. my watercooled 300W lamp * 18h * 60% = 3,24 KWh of heat power every day. I put it in a heat...

https://www.rollitup.org/t/water-cooled-cobs.909674/page-14#post-13410293

:peace: black thumbs up :joint: bongsmilie:clap: :arrow: my answer is only correct if you find the right question :bigjoint: RKRK seems to be a terrorist - ...:fire:

I`m not Robin - but that`s correct.

:peace: Hello ? :confused: - anybody here to answer a stupid question ? Why is there always a gap in the spectral distribution graph of a white phosphorus chip? And why is it always between ~ 490-510nm ??? I plan to build a lamp and would like to think about how to intelligently close...

9 x QB 288 in paralell is close to heaven at 25W each / ~48VDC / ~200LM / W make shure your driver always run a min. of 2 boards or better 3. Never run a single board @ 4,45A

fucking crazzy wworld - fuck the crazzy mmootherfuckers - it`s for the KWh they loose...on the bill. They put a tax on sunshine :spew:.:idea:....and maybe soon on the air we are breathing.

It`s much easier with a grid tie inverter - but I have to check the legal situation here in fucking- over-regulated Germany and then find out if my electric meter is able to run vice versa :confused:

Try here: http://pct.cree.com/dt/index.html

http://pct.cree.com/dt/index.html Search for your cxb 3590 36v on above site. Compare LM / W , total LM and others.... Then you understand why it is important to know, what type of binning flux you are buying. Ask the seller of your cxb 3590 to get moore information !

the diference you can see on the same cree site. from 100LM / W to 190LM /W --- yes there is diference ! :idea: :!: :idea::idea:

:peace: LIGHT HEAT COGENERATION Many people think that led-light is more efficient, because it produces less heat. That`s a fallacy ! The heat production of led light is still ~75% of the input power. Even if we drive quality led chips at low current. Heatpower Pt = ~ 0.75 * Vf * If --->...

you find your chip here: http://pct.cree.com/dt/index.html If you know the binning flux of your chip (Y4 [6910] ...--->...DB [13000]) you can calculate lm / W of your lamp. @1000mA (30% of max. current) your chip will run with a very good efficiency :peace:

:peace: No - you need min. 5 in a row of these chips to use this driver, because output voltage is 143-286VDC . make shure your chip can stand 1000mA - and the driver will be suitable.

http://pct.cree.com/dt/index.html

:bigjoint: light heat compliance :idea::fire: is the future :eyesmoke: ...may be I sell this water-cooled LED light as a kit with all components included (chips, drivers, aluminum parts, plugs, hoses, pump and hanging kit). The kit comes pre-assembled and tested. The client only needs to...

:bigjoint: ouuuppps - there is a chinise watercooler on the market :oops::eyesmoke: http://www.ble.lighting/wp-content/uploads/2017/04/zxc11.jpg

Most important is to adjust the dimension of your watercooled light heat cogeneration to your needs. In my case it`s a ~325W lamp with ~180W of heat production. With an average use of 15h daily in a 1,5m² growroom I can harvest ~80L of hot water / day and more than 1kg of willyweed during the...

:peace:(: After experience of Cree following points in particular affect the lumen maintenance: the silicone that serves as the lens of the LED lamp the LED chip materials the manufacturing process the phosphor used and the technique by which this material is applied To take into account is...

I like to recommend you another forum. https://www.grower.ch/forum/ There you will find a little, but stupid and arrogant community, where people like you fit in ass perfect. --- Please send me a postcard for Christmas