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thanx so much! Could i use the HLG-240H-C1400 A? i'm afraid to be not able to install properly an external POT and I'd like to use the POT mounted on driver surface. Which of the two options would you suggest to get the best yield?...200W by four COBs or 190W by five?

Hi, could you please help me to understand which is the best MW driver for 200-250W DIY cob led? I will use an arctic64 active heatsink(alpine 11 seems to be small) so 25°C may be not utopy. VERO29D need 37.2V at 1.4A 36.5V at 1050mA and 38.7V at 2.1A I' ve a 70x70CM grow box (2.3 ft) so i...

Hi again..i do notu derstand how much volts does these luxeon cob have at1050 and at 1400mA. I can t find any informstion about his on datasheetfor example lm/w at different ampere and cob voltage..do you have any information?

Thanx, but this ebay store do not sell 3500K 80CRI

HI! I'm studyng about the best light project cobering a 2.3x2.3 tent. (70x70x160cm) And my idea would be for a 200w(should be enought?) of total actual power lamp mounting 4 Vero29 D 3500k run at 1.4 A or at 1050mA ish 190W (5pcs)...I would prefer the second option because i know as vero 29...

Hi JavaCo, many thanx for your answer. Actually my project is for a 2.3x2.3 tent. And my idea was for a 200w of total actual power lamp mounting 4 Vero29 D 3500k run at 1.4 A or at 1050mA ish 190W (5pcs)...I would prefer the second option because i know as vero 29 could run harder with good...

i meant from EU warehouse, not from extra EU sellers...andas java said i took the price on futurelect , so any risk of customs duty , free shipping over 175 EUR(i've to buy other things)....anyway what do you think about this cob? is a good thing spend ish 150USD for 5 VERO29gen7 instead of...

in europe that costs around 20USD :(

Actually there's only a 3500K 80CRI the L2C5-35801205E1300. regards!

http://www.lumileds.com/uploads/600/DS162-pdf Hello. What do you think about these COBs? Efficiency seems good and they cost 1/3 of vero29 and less than 1/4 of cxb3590. I don't know the spectral data of the light and do not know how they work in grow practice, They are produced by Philips ...

Hi...if alpine11 is a little smal for vero29 what about artic64?would it fit better? And artic m1 passive? Peace!!

thanx for your answer, i haven t got any idea..

Sory again, are these informations still update or would i consider to buy an angelina reflector instead of kingbrite?

Hi! I can't find available any vero29 gen7 rrflector holder. Could you help me to find some cree ideal holder that can be adapted as substitute of c13584? Maybe c14036? 502100? 502300? Which above these, if any? Thankyou very much and have a good day!

oh, ok sorry! you re right!

sorry I did not understand your answer, why you said "compulsive?" my language issues do not help me. I would'nt like to use a multimeter because I'm afraid to use it, I have no confidence in the electricity( also when it is only 36V) and i know that i may damage COB or driver with wrong...

So on hbg-60 sn't there any "end of scale" for dimm at full power? Your is a smart method but as you sayd a little bit rough..

hi, i know, thats an old 3d but nothing changed, same heatsink on the market and same cob technology(cxa run cooler than cxb?)

cree and moduled are both 150*100mm size and cree productors said that are good for 6000-8000 lm cob led (about 50w) mechatronix say "8,000 to 16,000 lumen" ...i don't know if it s only bad marketing or if you are wrong...

at least 110cm²/W? are you sure? it seem really too much surface, i don't not wow much is the artic surface and how much heat can the fan can get off but moduled 152100 or cree LMH020-HS00-0000-0000081 are made from engeneer for bigger power than 50w, have you made some study for say...