Search results

Damn, with power meter I realized the power consumption is only 240W, while 600W should be for the 15 piece of COBs. So of course my tomatoes did not grow too well. Once i did cut the wire to the china potentiometer, the consumption went back to the normal 600W.

Awesome, could you suggest a good enough cheap light meter?

Hy guys, I have a custom made lamp with 15piece CXB3590 with strong enough active cooling, but i think they do not give as much brightness as they used to. Plants are bushy, but fruits are smaller. The LEDs are about 3 years old now. How could I test if the light is less? If I need to change the...

Ohh, It does 90.3W, but it should be in range. Those no name leds require 3.8V at 700ma, while the cree leds 3.3V. So lets say 3.5V x 700ma = 2.45 Watt x 35 = 85.75Watt total. Am I misscalculating something?

Hey Guys, I wired up total 35 leds with hlg-80h-c700a, but when i tried to power them up within a second something is exploded or maybe all the leds. 28 of these leds are Cree XTE 1w-5w and 7 of them are cheaper 3w Leds. What could be went wrong and how am I going to find the mistake?

Hi, Do you still have?

I have good experience with Chan Sam, he delivered me the 90 degree lenses and two HLG 180h drivers. His prices absolutly cheaper than Jerry Meng's, the shipping also lower and I do not had to pay the Paypal fees. I tried to get some more drivers from him, but now he has unavailable stocks...

Ohh Hello, I did not know that, unfortunately I have already ordered few 6000K. I thought they have lots of blue. I have already have blue leds between 420nm-480nm wavelengths too, how about if I use these instead the 6000k in the first two weeks? Than after they go under to the 3500K 3590CXB.

The question is interesting to me as well, what is the best LED light for seedling? I'm thinking to build a custom seedling light, about a 90W power draw from the wall, with the following LEDs; 420-430nm 3 led, 445-455nm 7 led, 460-465nm 7 led, 470-475nm 5 led, 6000K 10 led, 3000K 5 piece of...

If I paid via Paypal I'm probably safe, or?

So someone received something from chan sam? I made payment for lenses and for drivers recently, since that no shipping information or answers...

Hey Guys, 6000K or 3000K will be better for seedling?

Thanks for that explanation. How often do you use the dim switcher? Like every day when you enter into the box or just at the different grow stages of the plants?

I'm struggling also between the A and B model which to buy. Is difficult to access the potentiometer on the A model? Why is good idea dim more than 50%?

Seems I have no like button, but thanks anyway! It looks as I imagined, just wanted to be sure because pretty high wattage will go through. If others have different solutions please share!

Just simply cut off the end of the computer power cord, than solder the longer part with the drivers? What protection could I use between the three solders other than tape? I'm afraid it will explode when I give power, I also would like it to look good...

Hello Guys, I'm happy to find this great thread and as noobe with DIY I'd like to ask how to wire up two HLG 185h with a single PC power cord and what components should I order?

Many thanks, I've got it how to connect :). Buying 5k resistor anything good? I've seen 2 and 3 and 5W versions, unsure if this 5W 5KR 5Kohm 5K Cement Resistor for example good?

Thanks I will use the 5K resistor and an 50k ohm potentiometer as you suggest. But still unsure if I can connect two driver into that one potentiometer?

Hello Guys, I'm new to building LED lights and unsure what kind of potentiometer should I use for 2x HLG 185h c1050B driver? I'd like something nice and easy to install, could you please reccommend something?