I am trying to put together some lights for flower in 2 5x10 grow tents.
I saw the HLG 550 V2 Rspec and 650R. The 650R is a beast it also costs AUD 2k.
@Budstone recommended I look at cutter electronics here in Australia.
Have been doing so much research on the different options, I also got the IES files from Cutter to run in Dialux to run some simulations. I have narrowed it down to 2 options that come in under my budget and meet my needs.
The QBs are the SSK-272-RR-V2 3000k 90CRI boards. https://www.cutter.com.au/product/ssk-272-rr-v2/
These are the diodes.
Super Red Mix. Nichia 3000k, 90 CRI(256), Cree 660nm(8), Cree XPE-2 Red 630nm(4), Cree XPE-2 Far Red 730nm(2), Infra Red, 840nm(2)
On paper they look like an awesome board. I run some simulations in Dialux and with spreading the boards out I can get pretty good coverage. I would need to run 2 x Meanwell HLG 480h 2100a drivers running 4 boards each and then the HLG 240h to run a further 2 boards. Total of 10 boards all up.
The working plane below represents the canopy.
Running in this configuration I would get an average of 777 PPFD with a max of 978 PPFD. This is running at 18 inches from the canopy. 1200w output to the LEDs. Cutter also tell me the drivers have the ability to be adjusted to increase watts using the onboard potentiometer above the 480w or 240w. That hasn’t been taken in to account on the simulation.
The 2nd option is a strip build using 2 kits. https://www.cutter.com.au/product/ssk-1560zge-35-2835cr-4x4-kit/
The strips are the SSK-1560ZGE-35 3000k 80CRI https://www.cutter.com.au/product/ssk-1560zge-35-2835cr/
Using these diodes Cree 2835 HE(96)3000k with Cree XPG-3 G bin 660nm
In total there would be 32 strips. 16 per 5x5 area. The simulations I run were at 1000mA at 15 inches.
Cutter said they can be driven higher if I need them to. The drivers used are 8 x ERP 160w. I have very little knowledge of these drivers they can be found here https://www.cutter.com.au/product/slm160w-1-0-160-za/
At 1000mA cutters figures put output at 600w per kit for 1200w total.
Running this configuration I would get an average of 804 PPFD with a max of 948 at 15 inches from the canopy.
The QB build is considerably more expensive than the Strip build to the tune of about 40%. I have no problems spending the additional dollars if it’s a good idea. I am worried about penetration with the strip build as well as the CRI. I also don’t like is having 8 drivers in total on the strip lights.
What I like about the strip build is much more even coverage though. It’s such a hard decision.
Do you guys think the 90CRI boards will make much of a difference?
Any thoughts on either build would be much appreciated. Cheers