It all worked out though. Rapid exchanged for 3 240h-1400b. Now I can have 750watts if needed. I'm excited. Thanks again for this site and the knowledge on it.

Man would have saved me some headache if you would have seen this earlier. Thanks for the knowledge drop ledgardner.

Growmau was able to answer the problem of the lost wattage. It was a great explanation and feel it could help others. This is an email from him. Luckily rapidled is an awesome company and swapped for constant current drivers. I am not certain of how deep your background with leds goes, so I will ove...

I did email him and he wasnt sure either.

So I have been in contact with rapidled about the driver. Sent them info about my build and pictures of the driver only sending out 40v. Sent it back to them and they hooked it up to multimeter with no led connected and getting 47.8 volts. How can my setup lower the voltage so much? I am at a loss a...

Hooked up to chilled pucks.

What is the voltage the driver is putting out. I just sent back a 600h 48b bc it only put on 40v.

Sounds good. Thanks for reading through my posts.

Upgraded the runs to solid 12 awg with the 4 inch of solid 18 awg to the pucks. 40.3 volts at the driver and 40 at the ends of the runs so slightly better but still only 545 watts and 4.6 amps on 120v. Rapid potentiometer open but did try with it removed. Unsure what to do. No way to change the volt...

Have 4 on one set and 8 on the other due to bars with 4 each. I have minimized the length of wire as it is remote around 2 ft then 4ft for the furthest bar. Using 16awg runs then t in with 18awg solid to the pucks at around 4 inch. This is 110v ac. At the driver its 40.3 volts and at the end of the ...