All posts by clw

Mars Hydro R192 vs. SolarSystem 550 LED Grow Lights Showdown!

Can’t decide on which LED grow lights to purchase? Well, we can help you narrow some choices down with REAL results showcased below by a gentleman who has been kind enough to submit his very own test results to California LightWorks.

Some Background Info

“Hi CLW, 10 days after germination, one reseed in the center, 77 degree air, 50% r.h., 72 degree soil and all thriving. The Mars Hydro side got off to a slightly better start, shorter and more uniform. Seems to me that the splash light everywhere design of the Reflector 192 may have a softening effect that benefits germination. I also think that design may be it’s limiting factor later on. Both sides are close in development now with the three healthiest on the CLW side, measuring up to 4 1/4″ across second leaf pairs. Shine on, William”

Results from SolarSystem 550 (w/ digital controller)

mars hydro vs solarsystem led grow lights
Score your very own SolarSystem 550 here!

Results from Mars Hydro R192

mars hydro solarsystem led grow lights

Thank you, William!

Big shout out to William for sending in the results! Our entire team would like to thank you for taking the time to compare these two LED grow lights.

Have results you want us to showcase? There are 2 easy ways to submit your content to us to be featured:

1. Email us at: We’ll try to respond as early as we can.
2. Share your photo on one of our social media outlets and be sure to tag us by adding “#calightworks” to your post!

Limited Time SolarSystem 550 LED Grow Light Test Program!


As you most of you are already aware, California Lightworks is now one of the leading U.S. manufacturer’s of LED grow lights. However we are always looking for ways to improve our product line. As a result, we are offering our brand new SolarSystem 550 LED grow light at a SIGNIFICANTLY reduced price*.

Details of the SolarSystem 550 Test Program

It’s really simple – fill out our questionnaire here and we’ll get back to you with the next steps. Please keep in mind this program is for growers in several different growing applications: small scale, medium scale, and large scale greenhouse grow operations.

What We’re Asking From You in the Program

All we ask from you in this program is to provide us with HONEST feedback of the product, as well as photos and/or videos of your grow operation. Remember, this is all for our research & development process as we work towards bringing you even more efficient LED grow light and lighting systems!

*We will only be offering this program during the month of September and quantities for the test program are limited. If you have any questions regarding the program, please call us @ 800.575.3475.

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