growcel.com

11/16/2025

Explore the benefits of Healing Light Therapy via Cool Efficient Lighting LED

Millions of people are discovering the benefits of healing with LED light therapy. Far red (680 nm) light directly increases ATP (energy) in cells. Blue light (470nm) is also helpful to kill harmful bacteria and reduce inflammation.

10/19/2024

https://www.growcel.com/ some updates are now live. Also order your lights now if you want them by Christmas.

LED grow lights from RTGCEL: Cool Efficient Lighting. Our LED lights are made in the USA and engineered for optimal performance.

06/28/2024

New LED grow lights from www.growcel.com are out now. Super efficient grow lights made in the USA and guaranteed for 10 years!

01/25/2023

go green today! New info and pricing is online. We have some of the most efficient LED grow lights and our guarantee is twice as long as most of the competition

Get your LED grow light from Cool Efficient Lighting. Our LED lights are made in the USA for optimal performance from seed to harvest.

01/10/2021

grow light videos are back online!

04/09/2019

RTG CEL LED grow lighting

04/09/2019

www.growcel.com has been updated! Check it out!

02/17/2012

new site and new info

Instructions how to build a super efficient LED grow light from RTG CEL (cool efficient lighting)