Hygger HG999 24/7 Auto On/Off LED Aquarium Light

Hygger LED Fish Tank Lights (HG999)

Five-row LED fixture with a 24/7 cycle and a programmable DIY mode

The Hygger LED Fish Tank Lights (HG999) is a five-row LED fixture with a natural 24/7 cycle or a fully programmable DIY mode. It has nine brightness levels, seven colours, and extendable brackets that fit tanks from 12 to 55 inches.

Key Features:

• Natural 24/7 Cycle: Automatic sunrise, daylight, and moonlight transitions mimic nature, promoting fish health and plant growth.

• DIY Mode: Customise with 6h, 10h, or 12h photoperiods, seven solid colours (White, Red, Blue, Green, Purple, Orange, Cyan), and nine brightness levels (10%-100%).

• Water-Resistant Design: IP68 waterproof lightboard with an aluminium heat sink and sealed touch-button controller for durability and safety.

• Extendable Metal Brackets: Slide to fit tank lengths from 11.8 to 55.1 inches for a secure fit.

• High-CRI Lighting: CRI ≈85% gives soft, flicker-free light that brings out fish colours and supports plant growth.

• Memory Function: Resumes previous settings after power outages.

Why Choose Hygger?

The HG999 gives full-spectrum output for plant growth and fish colour, with a gentle glow at night. It replaces a bulky hood, and the controller sits on the unit rather than on a separate box. It suits freshwater community tanks, breeder setups and lightly planted aquascapes.

Usage Tip:

In DIY mode, set the light to ramp up over 15 minutes rather than switching on at full brightness. Fish settle better with a gradual start.

Specifications & Variants:

• Model: HG999

• Variants:

  • 14W: 14 watts, 12-18 in (30-45 cm) tanks, bracket range 11.8-18.5 in, AC 100-240V

  • 18W: 18 watts, 18-24 in (45-60 cm) tanks, bracket range 18.5-24.4 in, AC 100-240V

  • 22W: 22 watts, 24-30 in (60-76 cm) tanks, bracket range 24.4-30.3 in, AC 100-240V

  • 26W: 26 watts, 30-36 in (76-91 cm) tanks, bracket range 30.3-36.2 in, AC 100-240V

  • 36W: 36 watts, 36-48 in (91-122 cm) tanks, bracket range 36.2-48.0 in, AC 100-240V

  • 42W: 42 watts, 48-55 in (122-140 cm) tanks, bracket range 48.0-55.1 in, AC 100-240V

• Included: LED light, AC/DC power adapter, dual metal brackets, user manual

• LED Composition (14W model): 29 white, 11 blue, 4 red, 2 green, 12 RGB beads; 6500K white, CRI 85, 817 lumens

• Waterproof Grade: IP68 (lightboard), IP54 (controller)

• Housing: Aluminium alloy with fast heat dissipation

Note: Wipe splash marks with a damp cloth; do not submerge the controller. Suitable for freshwater tanks only.