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18-48CM LED Aquarium Lights Waterproof Fish Tank Light Dimmable Submersible Lamp with Timer Auto On/Off Underwater Decor 3 Modes

18-48CM LED Aquarium Lights Waterproof Fish Tank Light Dimmable Submersible Lamp with Timer Auto On/Off Underwater Decor 3 Modes

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Specifications

Brand Name
JGT
Battery Included
No
Origin
Mainland China
High-concerned chemical
None
Fixure
In Water
Power (W)
4W
Type
fish
Width
48cm
Choice
yes

Product Description

Submersible LED Aquarium Light Fish Tank Light with Timer Auto On/Off White & Blue LED Light bar Stick for Fish Tank 3 Light Modes Dimmable


Description:

* 3 LIGHTING MODES: The white, the bule or the white & blue light brings out the color of everything in tank,creates a wonderful aquascape. It is the best choice for main light, accent light,or replacement aquarium hood light.

* FOUR LENGTH: There are four size LED Light bar Stick, 18cm/7inch, 28cm/11inch, 37cm/15inch, 48cm/19inch.

* GOOD FOR PLANT & FISH: Ultra-bright 7000-7500k White LEDs and rich 460nm blue light are sufficient to grow your plant thriving.It also lights your fish in a way that really changes their color to stand out.

* BUILT-IN TIMER: The fish tank light has built-in timer and 3 timing durations, it will come on and go off at the same time every day and light up for 4 hours,8 hours or 12 hours.No need to buy extra timer.

* BUILT-IN DIMMER: 18cm light with 18LEDs, 28cm light with 30LEDs, 37cm light with 42LEDs, 48cm light with 57LEDs, super bright, if you have over bright issues, you can adjust the brightness with the built-in dimmer for each white light and blue light.

* WATERPROOF AND EASY TO MOUNT: It is submersible and with moveable suction cups, mount the light on tank bottom or at the top, attach it into the tank any angle or even outside the tank.


Features:

-Brightness Options From 10-100%

-Divided Adjust Brightness Color Beads

-3 Lighting Modes:white/ blue/ blue&white

-4/8/12H Timing Periods Everyday

-Automatic Lighting On & Off Everyday


Specifications:

Material: acrylic + rubber

Lamp beads: High-energy-saving 2835 SMD lamp

Light bar size: diameter 18mm/7.08'

Length: 18CM/28CM/37CM/48CM

Voltage: Input: AC100V-240V, Output: DC12V (low-voltage DC power supply makes you not afraid of electric shock, safe to use)

Lamp power: 2W / 3.8W / 4.8W / 5.8W

Lamp color: White, Blue, White+Blue(Multicolor)

LED Qty.:

18cm  18LEDs 

28cm  30LEDs 

38cm  42LEDs 

48cm  57LEDs 

Waterproof grade: IP68 (completely waterproof, can use in water and land)


Package Includes:

1X LED Aquarium Light

1X Power Adapter
























Pros & Cons

Pros

  • Fully submersible waterproof design for underwater aquarium use
  • Three adjustable lighting modes to enhance tank decor and highlight fish colors
  • Dimmable settings and auto on/off timer for customized, automated lighting schedules
  • Adjustable length range (18-48cm) to fit most small to medium-sized fish tanks

Cons

  • Only has a 4W power rating, which may not be sufficient for large or heavily planted aquariums
  • No exact information on color temperature or lumen output provided
  • No mounting hardware details included in the product description
  • Limited brand support information available for the JGT product line

Common Questions

What materials are used to make this submersible aquarium LED light?

This light is constructed from waterproof plastic and LED components, designed to safely operate underwater in fish tanks with no high-concerned chemicals listed per specs.

What is the adjustable length range of this aquarium light fixture?

This light can be adjusted to fit tank lengths between 18cm and 48cm as specified in the product title.

What types of fish tanks is this LED light compatible with?

It is compatible with freshwater and saltwater fish tanks that fall within the 18-48cm length range, and is fully submersible for underwater use.

What features does this aquarium light include for automated use?

This light offers three lighting modes (white, blue, and combined white+blue) and includes a built-in timer with auto on/off functionality for scheduled lighting cycles.

Where is this product shipped from, and does it require external power?

This product originates from Mainland China, and it does not include a built-in battery, so it requires an external power source to operate.

Product information last updated on November 19, 2025