Submersible Aquarium Light for 12 to 23 Inch Fish Tank, 24/7 Cycle Fish Tank Light with Timer, Aquarium Plant Light with Full Spectrum+7 Single Colors, Auto On/Off, Adjustable Brightness
Original price was: $20.99.$16.79Current price is: $16.79.
Price: $20.99 - $16.79
(as of Oct 08, 2025 02:19:49 UTC – Details)
Product description
SEAOURA Aquarium Light Features
24/7 Cycle Mode Function:The 24/7 Aquarium Light simulates dawn, daylight, and moonlight, bringing your tank to life with natural, vibrant illumination that fosters a thriving aquatic environment.
(Note: In this mode, you cannot change the brightness and color, only the time.)
5 Timer Options: 4 Hours, 6 Hours, 8 Hours, 10 Hours, 12 Hours can be choose
10 Brightness Level:10%-20%-30%-40%-50%-60%-70%-80%-90%-100% (when choose 10%-30%-50%-70%-90% level, indicator will be flash, when choose 20%-40%-60%-80%-100% level, indicator will be stay on)
System Color: Red, Blue, Green, Pink, Orange, Sea blue, Yellow, full spectrum, cycle Color (No Brightness Option).
Warm Tip: 1. If use timer mode, after timer, you can change the color or brightness, it will not exit the timer function.
2.If power failure, this light will be remember the last setting when there is power on. 3. Please use our plug to plug in, do not use other plug.
24/7 Cycle Mode 
Timer Function 
Color+Brightness 
Mutiple-Installation 
Controller Detail
1 24/7 Lighting Cycle 2 5 Timer Option 3 8 Colors+Brightness 4 Installation 5 Controller function
Compare with Different Size
Customer Reviews
4.4 out of 5 stars 1,006
4.4 out of 5 stars 1,006
4.4 out of 5 stars 1,006
4.4 out of 5 stars 1,006
4.4 out of 5 stars 1,006
4.4 out of 5 stars 1,006
Price
$14.39$14.39
$16.79$16.79
$19.99$19.99
$25.59$25.59
$28.79$28.79
$31.19$31.19
Watt
6W
8W
10W
12W
14W
16W
Lamp Body Length
7 inch
11 inch
15 inch
18.9 inch
22.8 inch
26.8 inch
Fits Aquariums
7.8-17 inch
12-23 inch
16-27 inch
20-35 inch
24-43 inch
28-54 inch
Lux
1739
1923
2008
2123
2206
2318
Par
33
36
38
39
40
41
Lamp Output Voltage
DC 20V
DC 20V
DC 20V
DC 20V
DC 20V
DC 20V
Output Current
0.6A
0.6A
0.6A
0.6A
0.6A
1.2A
Led Quantity
24PCS
48PCS
66PCS
84PCS
108PCS
126PCS
CRI
89
89
89
89
89
89
Product Dimensions : 11 x 1 x 0.57 inches; 9.59 ounces
Item model number : SR-629
Date First Available : September 14, 2023
Manufacturer : SEAOURA
ASIN : B0CJ2TCGMT
Best Sellers Rank: #9,175 in Pet Supplies (See Top 100 in Pet Supplies) #17 in Aquarium Lights
Customer Reviews: 4.4 4.4 out of 5 stars 1,006 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Simulating 24/7 Natural Light Cycle: Our aquarium light astonishingly somulate the day-to-night cycle of natural light. From the warm morning sunshine to the rich spectrum of noon, and the gentle blue light of the evening, this lighting method provides your aquarium with an immersive, nature-like experience
Premium Lighting: Our submersible aquarium light, with 2 rows of 5050 and 1 row of 2835 LEDs, which provide brighter and more uniform illumination than other use 1 row of 5050 LED and 2 rows of 2835. The light fixture offers 10 adjustable brightness levels and 5 timer settings, enabling you to customize the lighting to your preferences
Full Spectrum+Single-Color Modes: Our fish tank light can switch between full spectrum,7 single-color, cycle modes, providing a variety of rich options to meet your lighting requirements. Whether you want to simulate a natural ecosystem or enhance the aesthetics of your aquarium, it can be easily accomplished
Waterproof and Safety-Certified: With an IP68 waterproof rating, our aquarium led light can be safely submerged in water without any risk of damage. Operating at a low voltage of 20V ensures the safety of both your fish and yourself during installation and use(Please use our plug to plug in, do not use other plug)
Multiple Installation: Our led aquarium light can be easily installed as a background light for your fish tank, mounted under the aquarium cover, or fixed inside the tank using the included suction cups. The 120-degree sliding suction cups allows you to effortlessly adjust the angle for optimal lighting coverage
Customers say
Customers appreciate the aquarium light’s quality, functionality, and brightness, with one noting its dawn-to-dusk series and another mentioning its programmable 24-hour cycle. The color options receive positive feedback for mimicking natural sunrise/sunset cycles, and customers find it good value for money. The timer features a 24-hour cycle that customers like, and they say it looks amazing. While some customers find it easy to program, others find it confusing to set up.
13 reviews for Submersible Aquarium Light for 12 to 23 Inch Fish Tank, 24/7 Cycle Fish Tank Light with Timer, Aquarium Plant Light with Full Spectrum+7 Single Colors, Auto On/Off, Adjustable Brightness
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Original price was: $20.99.$16.79Current price is: $16.79.
Cholle –
Nice aquarium light
I love this aquarium light. I am able to set a timer and it turns itself on and on. You can change the color or have a pattern of colors. It works great for my 75 gallon tank, very bright and easy to use.
Jillian R. –
Amazing light!!
I am super impressed with this light :)The ability to change the lights brightness, colors & set it on a timer isnât necessarily any better than other lights on the market but it works perfectly nonetheless! The brightness on this light is superb & better than any of the other aquarium lights I own. The remote is on the plug line so you wonât be able to change it from across the room but honestly I have one of those on my other tank & I only ever use it while right next to the tank so Iâve opted to not worry about that feature when purchasing lights like these. The suction cups are subpar but my lids have a slight curve so Iâd assume that has a bit of an effect ** pro tip if using out of the water, put a bit of vaseline or aquaphor on them & theyâll stay on even a curved surface! **Iâve got minibow tanks (two 5 gal, one 2.5 gal) & I despise the basic lights that come with the tank I mean theyâre fine but donât have any brightness adjustment or timers so I always swap it out for a suction on light. My 5 gallon is the newest tank for my koi betta, Pablo Picasso. I took the suction light off the temp 2.5 gal & put it on this one & honestly it was dreadful – see the pic where Pablo is on the left side of the tank that was the previous light on FULL brightness. I couldnât even enjoy the beauty of Pabloâs koi colors & knew my plants were going to struggle. So I realized the replacement light I got for the 2.5 which is this light was crazy bright for that tank. I legit was keeping it at minimum brightness as itâs in my room & it was still blinding at night. I swapped the lights today & WOW what a difference!! The second pic where Pablo is on the right side of the tank is with this new light not even on 100% brightness. The difference is insane I can now watch my fishy better from across the room! I will be going with this light brand for any aquariums in the future!
Brian M. –
Easy to program and use.
These are fantastic. Can be timed. Can change color and brightness. But BEST of all is the dawn to sunrise feature. Fish love this. Mimics light through the day automatically. I used two 15in strips and they were easy to program and sync.The suction cups occasionally fail but easy to reattach since the lights are submersible too.Great product. Great design. And affordable.
Wallie E. Fields –
Light is good; programming is not
The all-color light is very bright and makes the aquarium really pretty. Several reviews mentioned that the suction cups did not work properly, but I have had no trouble with them. The remote, however, has very small buttons and the labeling is hard to read. I have tried numerous times to set the time and the on/off functions and have been unable to do it. I have had to leave the lights on 24 hours a day. Still working on it, but directions could be much clearer!
Chris W –
Great for the $
Great light, has many modes and settings gets very bright. I put it in a 50 gallon pond, lights it very well.
Allan –
Solid piece of equipment
Really like it!! Easy to use, lots of colors, doesnât get hot, definitely worth the price! Very sturdy! And canât complain with waterproof!I really like using the blue/UV at night and the orange throughout the day. The color brightness adjustment is amazing!! Iâm very new to aquariums but my fish seem more peaceful with the lights I chose than having a white light
Sarah –
Works ok. Had to rework a little- original cord did not work correctly
I almost returned this light. I have several of the heaters and they work well, so i decided to try the light… I plugged it in and attached it to the lid and the only color that would light up was red. Re-read the instructions, watched a video, still only red. So I thought something was wrong with the buttons…. just so happen to have another aquarium light plug, disconnected the one that came with this one- attached that one, and it now works so I kept it. Color options are pretty. Brightness adjustment is nice and has lots of options. The timer works well, too many options for me personally- but this tank is for snails and plants- so my needs are purely for growing and uncomplicated, not for entertainment/aesthetics purposes. Good value for money- even better if the cord it comes with actually works properly.
Dakotah Duncan –
I would buy again
Itâs a really nice light. dose everything as described and the 24/7 feature is really neat.
E –
I ended up getting 2 of these for my 50g fish tank, great purchase! Started with 1, loved it, and realized I needed another to fully light the front and back of the tank.It’s an old aquarium with a hood that takes 2 incandescent light tubes, and it’s getting really hard to find good lightbulbs. I was originally looking to replace the hood entirely and switch to LED lights, as nowadays they’re the most common for larger tanks, but the tank is an unusual dimension and I was getting super frustrated… And then I thought maybe I could just stick some LED lights to the hood. And that’s what I’ve done!The bars are thin enough they can each suction onto a fairly narrow patch of the underside of the tank lid, and I have one in the front and one in the back to illuminate the full tank. As they’re submersible I’m not concerned about them falling into the water, which did happen once when a suction cup failed. Other than that one day the suction cups have been perfect.I have live plants, and don’t like submerging anything with a power cord, so with their size and suction cups I’m able to place them perfectly where I need them! My plants are thriving with this light. I have it on the mode where it cycles through natural lighting throughout the day, and absolutely love that it’s on a timer, as my schedule can be inconsistent, and I think consistency is healthier for the fish. There are several modes to choose from, and many different colours and light intensities. The natural light mode can’t be controlled other than to set the time, but it works well for my tank, and isn’t too intense or uncomfortable when the water gets a little low and the light shines through.Cons: Primarily the controls. They’re attached to the power cord, and aren’t very intuitive. The instructions aren’t great, and it took quite a while to set up the natural day mode. But worth it once it was all set up!The other thing, which is just kind of funny, is the natural light mode doesn’t completely follow the actual sun up/sun down lighting… Near the evening it gets blue, then lights up a bit again with a brighter blue, almost to daylight, before winding down to a darker more “moonlit” blue.
J. Bell –
Love this light. You will get used to the controls, they seem confusing at first but in a couple days you’ll figure it out. It does put out a little heat like other reviews have mentioned, but not a dangerous amount and when it is submerged obviously it doesn’t get too hot due to heat dissipating in the water. Bought this size fir a standard 5 gallon, but I wish I got one size up as it really is quite small, especially for a planted tank. It gives a neat ambience but there are dark areas in my tank that the light doesn’t each on both ends. I’m considering getting a bigger one. It has a deeper profile ie it hangs a bit low on my tanks hood and when the water level is topped up, the light is actually below the surface so my duckweed doesn’t get any light. Overall I love this light, I’ll probably buy another one.
Matthew –
It’s a great light with many different options for lighting and timers. The only issue I have is that it’s not very bright. I would have traded the rainbow colour’s for a few more lumens. Good light though.
BABS –
This is the second one I have purchased. Works nd looks great. Was not well cushioned in the box, end of shipping box scrunched in.
Jason w. –
Great