This light seems pretty awesome for the price. I got this one based on external reviews and my own comparisons.

Pros: Bright, has RGB Leds for full spectrum, night light mode with only blue leds on, body itself is solidly constructed and is sleek. Cord comes with a screw-together coupling and a branded external power converter.

Cons: - the glass is not sealed to the frame and has some wiggle room. not really a factor if its not moving around on the tank but the permeability over top a tank of water seems to be a short cut in construction. (product says its not water proof, but i wouldnt mind some humidity protection)
- the feet could be much better designed. they do not extend out far past the body of the light, so make sure to get the one that spans the entire tank. they also sits weirdly on the tank frame, especially for 55 gallon tanks with a central support bar (split top) - the foot sitting on that support has to go on the opposite side of the bar from the side you have the light on, making lids almost impossible on one side if you dont get the light that spans the entire tank. something to keep in mind. I do not have this concern as i intend to grow aquaponics on top of the open side, but that would be a concern for someone with lids on the tank as recommended by the manufacturer.

overall, its useable and pretty OK for the price. id like to see beamswork redesign their feet and it'd knock the competition out of the park. read some reviews about the longevity of the product, so far no issues but ive only had it a day or so. will update accordingly if something goes wrong.

I will start with what I like - It's a Perfect Fit with a small amount of room for adjustments. It is a great value BUT you really do need the Dimmer and Timer (Sold Separately) to really get the full benefit. Without the Dimmer it is all out - And the extreme brightness will cause an Algae Issue - Also you have to flip the switch from Daylight to Moonlight and yes, The Blue Moonlight is also extremely Bright. Once you add-In the Dimmer and Timer - That is when this Light Shines (No Pun Intended) - It's now Hands-Free, Timer works great BUT, you only have Two Programs which is what brings me to what I Don't Like - Ideally I would like to have three Programmable Modes to allow for a Sunrise (or at least Moonlight from a Dark Night (off)), Into Daylight, and then back to Moonlight. As-is, I have it programmed to come on Daylight at 6-AM / Off-8-PM, Switch to Moonlight at 8-PM and then Off at 1-AM. Also there should be an Option in the Programming for adjusting the Brightness of each Mode - I set the Dimmer Switch to Low when the Moonlight Phase comes on, so that also allows for a low light density in thee early 6-AM Daylight. Also, IF you turn the Dimmer off by accident and then back on, the Timer is affected / bypassed and will not return to your programming until the next mode / time occurs. As far as the Light itself, it's a Great Light and will go to a very high brightness if that is what is needed or desired - Mine is on a Twenty Gallon Freshwater Tank with No Plants only 2 Fiddler Crabs, 5 Snails, 1 Betta, Two Oranda's, Two Clown Pleco's - and they are all Thriving.

For the price these things are amazing. Very happy with my purchase.

So far seems to be good but I did notice when I turn the lights on sometimes, they would flicker and shut off then a second or so later they will come on hopefully they will last only time will tell I will keep you posted as I used them more.09/09/2023 gave it another star for doing a pretty good job in growing my plants there is not a day that goes by that I see most plants pearl. and this a low-tech setup that I turned a reef tank into a planted freshwater tank. If this keeps up, I'll give it another star.

I cannot say enough good things about this light! First of all, the packaging was perfect. It was wrapped fully in bubble wrap. No directions needed for the clear plastic legs (which are high quality, in my opinion). The light arrived in perfect condition and in good working order. It is a good idea to check all electrical connections and re-seat them to ensure proper function out of the box. This is true with any electrical product that requires different connections to mate up.

There is a good write-up on the Planted Tank forums regarding the PAR and PUR this light puts out. To put it simply, this light is impressive for the money! A single one of these will produce medium light at 18", which is fantastic! I've only had this light for a few days, with the amount of light it puts out, if it withstands the test of time, this light is truly unbelievable for the price. The plants are quickly doing noticably better! I use the 36" light on a 40 gallon breeder. I do about 10g of water every Saturday, dose fertilizer on Wednesdays and Saturdays. I did my first water change yesterday (Saturday 9/23/17) since getting this light...and my plants started pearling! They have NEVER done that! It was truly amazing to watch, very mesmerizing!

I'm sure you could achieve medium-high or even simply high light if you doubled up on this for those of you doing CO2 injection and growing high demand plants. I don't have any interest in doing that, but medium light is desired. I dose fertilizers, will start an Excel regimen now, etc, but no CO2. I keep some plants with my fish, not some fish with my plants. I would personally not hesitate to purchase this light again (unless Beamswork comes out with an even better one).

Will do periodic updates as time goes on to try to document how well this light holds up long term.

Update: The 36 inch model on a 40 breeder falls under the "high light" category, in my experience. I started growing a plague of green spot algae, and tried every trick to get rid of it. More flow, bigger, more frequent water changes, really increasing phosphate levels, etc, and the stuff wouldn't go away. Many on the forums have taken to using a dimmer with this light in order to stay "low tech" with great success, eliminating the algae growth and still growing healthy, beautiful plants. The other option is to inject pressurized co2, which is the avenue I went down. Adding co2 and increasing liquid fertilization in the water column and bam, new growth on platns stopped getting eaten by green spot algae.

I still love this light and highly recommend it, and feel it definitely deserves the 5/5 stars (where else can you find a "high light" fixture for around $50-$60?!), but be aware of its potential. I can't speak to the really long models on taller tanks, but if you have a 40 breeder or 55/60 gallon tank, purchase a dimmer, raise the light, or add co2. You won't regret it!