- Sku: HG978-14W
- Vendor: Hygger
Hygger 978 Full Spectrum Aquarium LED Light
The Hygger 978 Aquarium LED Light is a full-spectrum freshwater light with a built-in timer. Run it in the default 24/7 Natural Mode, which fades from a sunrise orange to daylight white to a moonlight blue, or switch to DIY Mode to choose your own color, brightness and on-time. Extendable metal brackets slide out to fit the rim of your tank. Choose the 14W for 12 to 18 inch tanks or the 22W for 24 to 30 inch tanks. Browse our other aquarium lights.
Features
- Full spectrum. 6500K white LEDs combined with RGB LEDs.
- 24/7 Natural Mode. Gradient sunrise, daylight and moonlight colors on a daily schedule (see below).
- DIY Mode. Pick a lighting duration of 6, 10 or 12 hours, one of 7 colors (white, red, blue, green, purple, orange, cyan) and the brightness.
- 5 brightness levels. 10%, 25%, 50%, 75% and 100%, set with the up and down keys on the inline controller.
- Power-off memory. After a power cut, your mode and other settings stay the same. Only the start time changes, and the default schedule starts at 6 AM.
- Extendable brackets. Adjustable metal brackets mount the light securely on the tank rim.
- Separable adapter and aluminum housing. The AC/DC adapter detaches for easy servicing, and the thickened aluminum housing helps shed heat.
- No extra purchases needed. The power adapter is included.
24/7 Natural Mode Schedule
| Sunrise (gradient orange) | 6 AM to 8 AM |
| Daylight (gradient white) | 8 AM to 6 PM |
| Moonlight (gradient blue) | 6 PM to 10:50 PM |
| Off | All other times |
Choose Your Size
| 14W | Fits 12 to 18 inch tanks. 817 lumens. Light bar 11.8 in long, 4.3 in wide. Hygger suits it to shallow tanks with moderate lighting needs. |
| 22W | Fits 24 to 30 inch tanks. 1583 lumens. Light bar 23.6 in long, 4.3 in wide. Hygger rates it for tanks up to 18 to 20 inches deep and for high-light aquatic plants. |
Setup Tips
- Slide the brackets out to fit your tank and set the light on the rim, adjusting length and angle for even coverage.
- Hygger recommends about 8 to 10 hours of light per day for planted tanks, adjusted for your plants and tank.
- Use lower brightness for low-light plants and raise it, with full white, for demanding plants. Watch for algae and adjust.
- Unplug before cleaning, wipe with a soft dry cloth, and keep the adapter and internal parts away from water.
Specifications
| Brand | Hygger |
| Model | HG978 |
| Sizes | 14W (12 to 18 in tanks), 22W (24 to 30 in tanks) |
| LEDs | 6500K white plus RGB |
| Output | 14W: 817 lumens. 22W: 1583 lumens |
| Modes | 24/7 Natural Mode, DIY Mode |
| Timer | 6, 10 or 12 hours (DIY Mode) |
| Colors | 7 (white, red, blue, green, purple, orange, cyan) |
| Brightness | 5 levels, 10% to 100% |
| Water type | Freshwater |
| In the box | LED light, AC/DC power adapter, 2 adjustable mounting brackets, user manual |
Recommended Pairings
- Hygger Stainless Steel Aquatic Plant Tool Kit for trimming and planting
FAQ
Which size do I need?
Match it to your tank length: the 14W fits 12 to 18 inch tanks and the 22W fits 24 to 30 inch tanks.
Do I need to buy a power adapter?
No. Hygger includes the AC/DC power adapter.
Will it lose my settings in a power outage?
No. Your mode and settings are kept. Only the start time resets, and the default schedule starts at 6 AM.
Is it good for live plants?
Yes. Hygger designs it as a full-spectrum light for freshwater planted tanks and suggests about 8 to 10 hours of light per day. The 22W is rated for high-light plants in tanks up to 18 to 20 inches deep.
Can I pick a single color?
Yes. In DIY Mode you can choose from 7 colors and set the brightness and run time.
Does it qualify for free shipping?
The 14W does. The longer 22W ships at the calculated rate and is not eligible for free shipping.
Have a question?

Hygger 978 Full Spectrum Aquarium LED Light


