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3500K is best for full cycle because it has a higher percentage of red spectral output which is good for flowering. The 4000K has a higher percentage of blue spectral output for vegetative growth and tighter internode spacing.

You might check out our Redwood VS or Cypress lights. The Cypress are designed for closer canopy operation similar to the HLG whereas the COBs offer more penetration. https://timbergrowlights.com/4-x-4/

@beercan , We used to build a series of lights using the original QB288 boards. HLG is a good company and Amit and Stephen are good guys. Can’t go wrong with either HLG or Timber both are solid choices in my biased opinion. Both are also quite different. Curious for others to chime in with...

@PSUAGRO. , Coming from you, that is one of the highest of compliments. Thank you so much - grateful to be associated with you. Take care, Dan

Hello RIU, Hope all are safe and healthy - wanted to let you know about our discount code 'RIU' which will save you $25 off each set of lights, no limit. We appreciate your support very much, especially as a small independently owned US business. Any questions, always feel free to post or...

Hello, Timber Grow Lights is running its Black Friday Sale early this year. Savings up to 15% - no need to wait for Black Friday - no funny business. Have a good day. Thanks, Dan

Hi I saw your post and wanted to comment - we are having an early Black Friday Sale and our sale pricing is also available through Build A Soil as well. If I can answer any questions please feel free to contact me. Have a good day, Dan

Hello RIU, Savings up to 15% on select items storewide including our new bar style lights, the Cypress 6 and 8. Sale on through 11/30 - we appreciate the support....during these times more than ever. Thank you, Dan #supportlocalbusiness #MadeInUSA #weloveourcustomers

Hello @keepittrucckn420 Thanks for the post. Yes, all of our lights including the Cypress can be built with an RJ12 connector in lieu of a dimmer knob which will allow you to connect it to a Trolmaster controller unit. There is no additional cost - just mention your needs in the special...

Hello RIU, Savings through 10/31 on both of our new Cypress Samsung bar style lights, the Cypress 6 and the Cypress 8. Both are designed to cover a 4'x4' area, the Cypress 6 features 540 watts at the wall and 6 bars, whereas the Cypress 8 pulls 725 watts at the wall and outputs light from 8...

Hello @DaFreak Thank you for the post. We did temporarily run out of the 2:1 Y-splitters for that unit. We didn't want to hold up shipping your light so it shipped with x2 regular cords instead. Please drop us an email at [email protected] and we can get one of those sent out to...

Thank you - good idea and updated :)

Hello, Now officially shipping, the Cypress 8 is available for a limited time only for $899 (special introductory price valid through Oct 11th). https://timbergrowlights.com/cypress-8/ Thanks much, Dan

Hi Rocket Soul, First off - thank you - I appreciate the post and the items you raised questions about are ones that are “controversial” but deliberate. One important factor in component selection was at the diode level. As such we went with a Samsung branded and warranted product to ensure...

Hello, I appreciate the opportunity to chime in, and thank you for the kind comments. We intentionally selected the LM561C as both a good value and also proven performer with a slightly larger output area and form factor than a 301 style diode (5.6 x 3 mm vs 3 x 3 mm). Additionally, our frame...

New website images of the Cypress 8 https://timbergrowlights.com/cypress-8/

Hi RIU, Wanted to let you know about our newest light, the Cypress 8. This is a mid-power Samsung diode strip style light that pulls 725W at the wall. Some features are as follows: - Calculated PPE of 2.3 µmol/J - 44" x 40" x 2.5" - low profile for height compromised areas and even uniform...

You are absolutely correct.....IMO :)

Throwing in my $.02, having measured PAR and spread at multiple heights using COBs, mid power diode strips and boards, it is very evident that PAR remains relatively evenly spread with strips when adjusting height above canopy however PAR readings remain even from a ratio perspective , overall...