FREE SHIPPING:  See details >
Holiday Shipping Schedule:  View >
Kessil® H380 Spectral Halo II LED Algae Grow Light

Please Note: Return of electrical equipment for exchange or store credit is limited to 30 days from the date of purchase. Beyond 30 days, please contact the manufacturer for repair or replacement as covered by the manufacturer's warranty.

Returned products must be unopened and in the original packaging to receive full store credit. Products that have been opened, used, or lightly used, will incur a 15% processing fee. Upon receipt of the returned product, store credit will be applied, minus the processing fee.



* Promotes strong, lush plant growth during vegetative phase
* Increases quantity and quality of yield during flowering phrase
* Superior color mixing for even growth

The Kessil H380 Spectral Halo II LED Algae Grow Light features two new spectrums - extreme purple and extreme magenta - in one fixture. Extreme purple provides the ideal spectrum for the grow phase, producing strong, healthy growth. The bloom phase is intensified by the extreme magenta spectrum, designed specifically to maximize both quantity and quality of the harvest.

The Kessil H380 Spectral Halo II LED Algae Grow Light is nearly 30% more powerful than previous Kessil lights. The H380 can also switch between spectrums, which allows you to fine tune the lighting for the best growth of your specific type of algae. Allowing faster growth lets the algae remove more nutrients from the water column. Grow to your full potential with Kessil's most powerful light yet.

Dimensions - 4.5" x 4" (length x diameter)
Coverage - 24" surface diameter by 3' penetration (on average)
Power Supply - 100-240V AC (input) 19 VDC, 4.74A (output)
Power Consumption - 90w max

1.Remove contents from package.

2.Screw the hanging bolt (D) into the center hole.*

3.Hang H380 1 to 2 ft. above the object to be illuminated.**

4.Connect H380 to the specified DC power supply (I).

5.Plug the power supply into an outlet with the correct specifications (see product specifications for more information).

6.Adjust the spectrum to the desired setting (B). "Grow" sets the spectrum to Deep Purple, ideal for vegetative growth. "Bloom" sets the spectrum to Magenta ideal for the flowering stage.

* H380 may also be hung by mounting 2 metal hooks (diameters of at least 2.5 mm and thread numbers of at least 6) through its brackets (F).

** H380 should only be installed on wood, acoustical tile or other similar ceilings.

** For sufficient airflow, the intake and venting holes (E, G) should be at least 12 in. from surrounding obstructions.

Customer Testimonials

8:30 am - 5 pm CST
7 days a week

8:30 am - 5:00 pm CST, Mon - Fri