hygger Auto On Off LED Aquarium Light - Full Spectrum for 18-24in

In this review the hygger Auto On Off LED Aquarium Light is evaluated for planted freshwater tanks 18 to 24 in wide. The bottom line: this light is aimed at hobbyists who want a programmable, full spectrum fixture that supports plant growth and attractive color rendition while offering an IP68 waterproof design. The single biggest reason to buy is the flexible 24/7 scheduling and color control provided by the wired controller with LCD, which turns the light on and off automatically and lets you tailor day and night periods without extra smart hubs.

Key Features

• WRGB lamp beads: A mix of white, red, green, blue and RGB diodes reproduces natural tones that make plant colors appear lively and water look clearer.
• Three programmable modes: DIY mode lets you create up to eight time periods across 24 hours so start/end times, color and brightness can be customized.
• Adjustable brightness: Day mode white light is dimmable from 10% to 100% so you can tune intensity for plant needs and algae control.
• IP68 waterproof: Fully sealed lamp body and optimized heat dissipation mean the fixture is protected from splashes and accidental immersion.
• Wired controller with LCD: The controller displays time, mode, color and brightness and stores schedules so the light cycles automatically.
• Solid construction: A 2mm aluminum shell improves heat transfer for stable operation without a fan, and the package includes brackets and adapter for quick setup.

Who It's For

This light is for freshwater planted tank owners who keep aquariums roughly 18 to 24 in wide and want a single fixture that handles daily timing, multiple color choices and full-spectrum output to support plant growth and show off fish colors. It is also suited to hobbyists who prefer a physical controller with an LCD and preset cycles rather than a phone app.

It is not designed for saltwater use, so reef keepers should look elsewhere. Also, users who require wireless or app-based control, or who need fixtures sized for much wider tanks, should consider other options.

Pros & Cons

Pros

• Well balanced WRGB output gives attractive plant and fish color without noticeable flicker.
• Flexible scheduling with eight periods covers realistic day/night cycles and specialty lighting needs.
• IP68 rating and aluminum housing deliver confidence around humidity and efficient heat dissipation.
• Includes controller, adapter and adjustable brackets for a complete out-of-box setup.

Cons

• Some users report mixed reliability with controls or loss of settings after power interruptions, so backup considerations are needed.
• Not intended for saltwater aquariums, limiting versatility for mixed-reef hobbyists.

Specifications

Brand	hygger
Suitable tank width	18-24 in freshwater planted tank
LED output	WRGB lamp beads (48 white, 7 red, 5 green, 18 blue, 20 RGB)
Power	18W
Waterproof rating	IP68
Controller	Wired LCD monitor with clock and six buttons
Included	LED light, controller, AC/DC adapter, 2 adjustable metal brackets, manual

Our Verdict

The hygger Auto On Off LED Aquarium Light is a practical, value-oriented choice for freshwater planted tanks in the 18 to 24 in range because it combines full spectrum WRGB output with flexible 24/7 scheduling and robust waterproofing. Hobbyists who want good color rendition and a physical LCD controller will find strong value here, though reef keepers and those needing wireless control should look elsewhere.

Frequently Asked Questions

Can this light be used for saltwater or reef tanks?
The fixture is specified for freshwater planted tanks and is not recommended for saltwater or reef use.

Will the light keep settings after a power outage?
Many users keep schedules stored, but there are mixed reports of lost settings after power interruptions, so consider noting your schedule or using a power backup if needed.

Does the package include everything needed to mount the light?
Yes, it includes the LED light, wired controller, AC/DC adapter and two adjustable metal brackets for mounting.