- H380 Halo II LED Algae Grow Light - Kessil (DISCONTINUED)
Growing macro algae in your refugium or sump can help reduce nitrate and phosphate levels in your saltwater tank while providing a safe harbor for micro-fauna to thrive.
The Halo II H380 has been specifically designed to emit a spectrum that will allow algae and other plants to grow to their fullest potential by targeting the wavelengths and spectrum required. The H380 does have the ability to change spectrum, that will allow you to fine tune the lighting for the best growth of your specific type of algae. Allowing faster growth will, therefore, allow the algae to remove more nutrients from the water column.
With the different types of Kessil mounting options, like the gooseneck, mounting the H380 is super easy and can mount on almost any sump or in any location.
Dense Matrix LED Technology
Kessil is a leader when it comes to LED lighting technology. With their Dense Matrix LED's producing a concentrated source of light, and switchable spectrum every wavelength within the spectrum is mixed perfectly allowing even and full growth. The H380 now has 30% more power than its predecessors allowing for deeper penetration and greater efficiency. The one fixture contains two unique full color spectrum blends with enhanced UV light.
Extreme Purple - Ideal for the growth phase of algae or plants. This spectrum will produce rapid growth while producing a lush, healthier algae. We suggest tuning the H380 closer to this spectrum to allow faster growth and uptake of nutrients.
Extreme Magenta - Targets the bloom stage, driving plants to increase quality and quantity of yield.
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
1x H380 LED Light
1x Power Supply
1x 120v Power Supply Adapter
1x Suspension Ring
Good for a large fuge, maybe too powerful for under a stand By Tony G on 4/5/2020Tony G would recommend this product to a friendI like Kessil lights and I have three A360X's on my display and I'm using the H380 to grow chaeto in my refugium. My chaeto has been running under the H380 since I started my tank a year ago and after the first month or two I am seeing heavy growth. I can only speak to the growth setting (as opposed to the "bloom" setting) which is the recommended setting for growing chaeto.
First, I will say that my chaeto grows quickly, my phosphate level has always been completely undetectable, and my nitrate has always been either undetectable or in the .5 to 1.0 range. If you are looking to get your phosphate and nitrate levels under control then the H380 will definitely help you with your issues as long as you have a large mass of chaeto. I have turned off the refugium light to let my nitrates rise up to 5 or 10, but one night of turning the light on and they are back down below 1.0.
For me, there are a couple drawbacks to this light:
The first is that it only has two modes - "Nuclear Inferno" and "Off". There is no way to dim the light so it is always at 100% and this light is VERY powerful. If you are mounting this in the sump below your stand where it will be 10 to 12 inches above your refugium then you need to be careful not to roast your chaeto. I didn't know this and mine was stunned for the first month or two. However, if you have a large 'fuge and can mount the light a few feet or more over the top of your chaeto then I think that is the ideal use for this light.
The other drawback for me is that this light doesn't interface with the Kessil Spectral Controller. You can only turn the unit on and off using the switch on top of the light, or via an outlet that is controlled by a timer or an Apex, that's it. I have mine hooked up to an outlet on my Apex which turns the outlet on and off at specific times, but at this price point I feel that it should really interface with the Spectral Controller, allow dimming, and allow the growth/bloom modes to be selected.
Overall, my nitrates and phosphates are being well controlled using this light and I would recommend it. It is possible I would see the same results with a cheaper light like the H80 or H160, but maybe not. I would recommend this light as long as you know the limitations.
Partial failure after a year. By Patrick on 1/13/2020Patrick wouldn't recommend this product to a friendI love Kessil lights but I'm very disappointed by this one. Just a year in and the blue LEDs shut off very quickly after it turns on. Kessil didn't have any suggestions aside from "maybe change power cords?" Also worth noting that this is for use in a refugium, and there is quite a bit of rust on the until in this timeframe as well.
next time I'll stick with cheap Chinese fuge lights.
Fuge light options By John on 8/22/2019John would recommend this product to a friendI’m a Kessil user. I have 2 x A360we’s over my 120 mixed with T5’s and I’m a fan. That said, I need to change tanks (long story) and cost is a priority. I have a 100watt LED bulb running the red and blue spectrums in my 55 gal tank and the Chaeto is growing thick in there. That bulb was $25. I’m looking at a square led light, same spectrums of red, blue, ir, that is documented at 1600 par for my new tank (bigger fuge) and its around $50. I haven’t tried the H380 which I know will work because I think the cheaper option should also work almost as well (hopefully), and I can get 6 of these for one H380.
Stopped working after 4 months By John on 8/20/2019John wouldn't recommend this product to a friendI had good results with the light for my 240g system until month 4... now I have a $300 paperweight. Yes it’s still under warranty but the company will only help via email and I was told “we will start your claim”. Now day later still waiting to get the address to ship this light to. Meanwhile my nutrients are starting to clime in my system and due to my system being run on Triton doing a WC will cause all elements to have to be adjusted and a massive headache. After reading other reviews I see I’m not the only one with this problem there are a lot more. I would even be willing to purchase a new light and return it when I get mine back but Kessil won’t answer that question either... Love BRS but if this is how Kessil deals with there customers I hope you drop their product line. I have cleaned them regularly as Kessil recommends but still broke after just 4 months! Don’t Buy!!
Worth every penny By Tommy on 11/26/2018Tommy would recommend this product to a friendI bought this light about two years ago and man at the growth on my Chaeto. I was stationed in South Korea for a year and had my uncle look after my tank. All he did was top off the water and feed my fish. I came back and my 300 Gallon Sump was about full of chaeto and the tank looked great with zero water changes. I have a 280G tank with 300 gallon sump
End of First Week By James on 11/6/2018James would recommend this product to a friendI installed the lamp 9 inches above the fuge section of my Trigger Emerald 39 sump. At this height I measured 843 PAR at the bottom of the sump and 2000 PAR one inch below the water surface. I ordered two tennis ball sized portions of Chaeto that had a combined weight of 91 grams at startup. My initial photo period was 8 hours then pushed to 24/7 on day 2 thru day 6.
1st day -- 91 grams
2nd day -- 93 grams
3rd day -- 104 grams
4th day -- 115 grams
5th day -- 133 grams
6th day -- 148 grams
7th day -- 162 grams
Nitrate and PO4 levels were super low at the beginning with my large remote DSB so can't comment on those. The PH spike I was expecting has yet to materialize. The fan is noticeable in a dead quiet room. My sump is in the mech room of my house so no issue.
Like everyone else would like to have seen a dimmer on this.
You get what you pay for. By BigBossReefer on 8/10/2018BigBossReefer would recommend this product to a friendThis light has grown chaeto amazingly well in my refugium. I position it 9” above the waterlevel for a 10 HR period opposite of my display. I have a heavily stocked & very well fed 175 gal reefer, using this light and chaeto, I have kept my nitrates at 1-2 ppm! Make sure to supplement iron (+ test) and iodine for maximum growth. Excellent product!
Simply the BEST. Better than all the rest. By Reeftripper on 7/20/2018Reeftripper would recommend this product to a friendI own a 200-gallon Mixed reef tank. It has Been up for 10 years. SPS was always just out of my ability to grow. I constantly was having issues with Nitrates and phosphates. I have a great skimmer, Biopellet reactor, Gfo, etc. nothing seemed to work. Went with the Triton method as seen on BRS TV. Mixed results because I was not getting very good Cheato growth. Then I went with the Kessil 380. complete change. I have a 16x16x12'' refugium chamber in my sump. I harvest a basketball size clump of cheato every Friday. My phosphate and nitrates are in the perfect zone for SPS. I can't say enough positive about this light. No more gfo, no more bio pellets, I have not done a water change in 6 months. I am growing SPS like crazy. I am so stoked with this light and the triton system6 months ago I bought a Walt Disney and JF Homewrecker sps. Both are growing like crazy. This light is the heart of my system. No other light comes close. I run this light over my cheato 24/7 at 1500 par. that is not a typo.
Very Disappointing By Pete on 6/28/2018Pete would recommend this product to a friendI purchased this light from BRS 14 months ago. It was easy to install and I was hopeful that it would do everything people (BRS included) claimed. It grew macro algae well, but not much better than my previous refugium LEDs which were around 1/6th the price of this light. Moreover, It has only been 14 months and the fan in the light has stopped working which essentially means the light overheats very quickly and shuts off after less than one minute. I realize the death of my light is from the saltwater environment, but I was very cautious when I got it and mounted it to avoid and problems For over $300, I would expect the light to function extremely well and to last more than 14 months. Essentially I wasted a huge amount of money thinking this light would be great, but it only performed slightly better than my previous cheap LEDs and it died after just over one year of use! Save your money and get something else.
Simply the Best By Kevin R on 3/29/2018Kevin R would recommend this product to a friendGreat product. As soon as the light went above my refugium, it made a huge difference. My Chaeto just about doubled in the first couple of weeks. I've seen a vast improvement in the efficiency of the refugium with this light. I would recommend it to anyone looking to increase the growth rate of their Chaeto in their refugium.
Disappointed By Whiskeyboy84 on 3/27/2018Whiskeyboy84 would recommend this product to a friendI will start out by saying I am a new reefer and am building a 250g system with a custom built sump to leverage the Triton Method that said I have a 35g fuge that is 30” long so I ordered two H380’s and an H series spectral controller that one would assume is compatible with the lights similar to the A360 and the A series controller and to my surprise they aren’t so if you need multiple lights for your fuge know an Apex or timers are in your future!
under powered By Tran on 3/26/2018Tran wouldn't recommend this product to a friendpower supply gets very hot, to hot
HI, I would like to buy one, but can you tell me more about noise level, thanks Nick.
I have a small separate refugium area with this light over it. I was considering adding a clam, but i was unsure if this type of light would support a clam. Any ideas?
Do you recommend running light 24/7 (if used for refugium)? If not, I will need a separate timer? Thanks.
Is this available in white by chance?
Does this light provide the spectrum of light needed to help maintain pH stability in the system when the Display tank lights are turned off? Looking for a light that can provide maximum algae growth and pH stability in the system, any suggestions?
In short the light has been used on several of our tanks including the BRS 160 with success in keeping the algae growth constant without major pH swings between day and night. It certainly has worked on our systems but there are several other variable which can impact pH. Feel free to let us know if you have any further questions!
Can this light be controlled with the Apex Neptune controller?
How is the intensity/spectrum controlled on this light? I plan to use it as a refugium light as suggested on BRS series but concerned about how close it will be hung (given stand height restriction) vs shallow refugium height.
This light has a single knob to adjust the intensity of the fixture. There is only 2 spectrums included the grow(recommended for algae) and bloom which is strictly used in hydroponics or plant flowering. Feel free to let us know if you have any further questions!
My H380 came with an ac adapter that differs slightly from the manual specs.
Specs: Input 100-240 VAC 47-63 Hz 1.5 A MAX Output 19 VDC, 4.74 A
Actual: Input 100-240 V 50-60 Hz ~1.6 A Output 19.5 V 4.62 A Max. 90 W
Can someone confirm this is the correct ac adapter?
Thank you for reaching out with your question.
The power supply that was provided with your light is the correct AC adapter. Manufacturers sometimes make small changes to the product and accessories after the manuals are printed. That adapter will work with that light with out any issues.
Let us know if you have any questions!
I'm a bit new to the refugium setup within a sump. How would you typically mount a light like this to a refugium within an acrylic sump? Does it come with some kind of mount? Also, do you need to have dark panels separating the refugium from other sections of the sump so algae doesn't grow in the Protein Skimmer and Return sections of the pump? Thanks!
Have a great day!
How high should you mount this light?
Great question! While mounting height can vary depending on your set-up, we would recommend at least 6-8" above the water to avoid burning your macroalgae and in order to maximize the distribution of light in the refugium.
Take care! c: