Give your tank a stress‑free, always‑on‑schedule glow with the Hygger 24/7 Mode Programmable LED Light. Built as a set‑and‑forget option for freshwater and planted setups, it uses an internal IC memory chip to keep your custom lighting cycle locked in. Even if the power cuts out, it bounces right back to your programmed photoperiod the moment everything turns on again, keeping your tank’s rhythm steady without you lifting a finger. Key Features & Benefits Smart LCD control interface eliminates the need for separate wall timers, displaying live local time, active mode selections, and current intensity percentages at a glance. Offers three advanced lighting modes, including a natural 24/7 sunrise‑to‑moonlight cycle, simple preset timer blocks (6/10/12 hours), and a fully customizable DIY mode with up to eight programmable periods, giving you total control over your tank’s day‑night rhythm. IP68 waterproof certification seals the internal components under a durable resin layer, providing complete resistance against heavy moisture, condensation, and accidental water drops. High-CRI WRGB LED array blends premium white, red, green, and blue diodes to drive robust photosynthesis while showcasing the vivid, natural pigmentation of your livestock. Thick 1.2mm aluminum unibody acts as an efficient passive heat sink, pulling thermal energy away from the dense circuitry to maintain an energy-saving, 50,000-hour lifespan. Extendable heavy-duty brackets slide outward on both ends, allowing a single sleek fixture to adapt flawlessly to a massive variety of aquarium lengths ranging from 12 to 54 inches. Technical Specifications Model No. HG999-14W Power: 14W Dimensions: 10.8 x 4.3 x 0.5" LED Quantity: 58 Lumens: 820lm Voltage: AC 100-240V / DC 20V/0.6A Cord Length: 4.9ft+2.3ft Aquarium Size: 12-18" Model No. HG999-18W Power: 18W Dimensions: 16.7 x 4.3 x 0.5" LED Quantity: 98 Lumens: 1120lm Voltage: AC 100-240V / DC 20V/0.6A Cord Length: 4.9ft+2.3ft Aquarium Size: 18-24" Model No. HG999-22W Power: 22W Dimensions: 22.6 x 4.3 x 0.5" LED Quantity: 115 Lumens: 1480lm Voltage: AC 100-240V / DC 20V/0.6A Cord Length: 4.9ft+2.3ft Aquarium Size: 24-30" Model No. HG999-26W Power: 26W Dimensions: 28.5 x 4.3 x 0.5" LED Quantity: 138 Lumens: 1720lm Voltage: AC 100-240V / DC 20V/0.6A Cord Length: 4.9ft+2.3ft Aquarium Size: 30-36" Model No. HG999-36W Power: 36W Dimensions: 34.4 x 4.3 x 0.5" LED Quantity: 158 Lumens: 1980lm Voltage: AC 100-240V / DC 20V/0.6A Cord Length: 4.9ft+2.3ft Aquarium Size: 36-42" Model No. HG999-42W Power: 42W Dimensions: 46.2 x 4.3 x 0.5" LED Quantity: 215 Lumens: 2160lm Voltage: AC 100-240V / DC 20V/0.6A Cord Length: 4.9ft+2.3ft Aquarium Size: 45-54"
