10k is the resistance. Watt would just be the max power you could put through the resistor for it to work properly. The ones you liked would work but that is 100 of them lol. Radio shack (do those still exist?) would prob have a smaller amount.
Yes, 1 pot + 1 resistor = 110K ohm resistance to make sure you're maxing the driver out at full power. Another way would be a switch that disconnects the pot when dimming isn't desires.
Thank you so goddam much for your help, this information is amazing. I'm loving how much there is to learn on RIU. I will get in touch with Jerry from Kingbrite about a quote for the cobs / driver later today.With that much aluminum you don't need no stinking fans. You're buying $100 dollars of metal for a 200 watt lamp. It will be a great lamp. Hit your local hardware store and buy some aluminum angle and use it to bond the two sinks together and create an anchor point for the driver. While you're purchasing the driver get a handful of wago 413s and a 415 for AC and DC distribution, a ring connector that fits the AC wire gauge you're using for a redundant ground, a 10k ohm resistor to run in series with the pot, a piece of shrink tubing, a bag of 7 inch zip ties. Always have some zip ties laying around.
Having said all that... adding a fan or couple fans to the lamp would just make it more bad ass. You might only get 1-2% more light from it, but you're looking at 15 watts for two fans? It could be worth it. The lamp you're building isn't maxing things out, it's seriously improving the yield of your current setup while getting extreme performance (64% efficient emitters) from 200 watts in a 2x4. It will be like it's not even there. Benefits of DIY.
Yeah like @REALSTYLES said you don't have the # of COBs to different currents down. You can run 8x 36v CXB3590s on an HLG-185H-C700. On that same driver, you could run 4x 72v CXB3590s. The output power would be the same (200w), just a different number of chips and less even spread of the light.
@23w's? Isn't it 51% @74- 76w and 54% @ 62-64
Yeah, 64.01% for the 3500k CXB3590 36v @ 700mA but we may be talking about different COBs.
@REALSTYLES Hey guys thanks for the help, I understand it correctly I think I just typed it weird. I was asking what the difference between 8 36v 3590s vs 4 72v 3590s is and you answered my question.
Jerry doesn't and people should know what to buy before ordering anything because 9 cobs @36v will fit a HLG-240H-C700A with no problems and @tinyplantas probably confused Jerry just look at the post I had to correct him on.
@REALSTYLES @Rahz I feel like you guys just misread my sentence here. It was a typo for me to ask about amperage when the C700 is 700ma. I was just asking about running 4 x 36v vs 8 x 72v from the C700.
Using glass now but it's a pain to clean them. I haven't yet but when I do I'm gonna have to take off the lens to clean the front and back and with reflectors just wipe and done, they both direct the light where you need it to go
