--- product_id: 22043443 title: "Fluval Digital LED Dual Lamp Timer, A3977" brand: "fluval" price: "€ 1.70" currency: EUR in_stock: false reviews_count: 9 url: https://www.desertcart.at/products/22043443-fluval-digital-led-dual-lamp-timer-a3977 store_origin: AT region: Austria --- # Programmable sunrise to dusk Freshwater & saltwater compatible Controls 2 LED lamps Fluval Digital LED Dual Lamp Timer, A3977 **Brand:** fluval **Price:** € 1.70 **Availability:** ❌ Out of Stock ## Summary > 💡 Light Up Your Life: The Ultimate Aquarium Timer! ## Quick Answers - **What is this?** Fluval Digital LED Dual Lamp Timer, A3977 by fluval - **How much does it cost?** € 1.70 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/22043443-fluval-digital-led-dual-lamp-timer-a3977) ## Best For - fluval enthusiasts ## Why This Product - Trusted fluval brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Set the Mood:** Create the perfect environment with programmable settings! - • **Dimming Delight:** Enjoy on/off progressive dimming for a natural ambiance. - • **Seamless Dual Control:** Effortlessly manage two LED lamps for a stunning effect. - • **Versatile Compatibility:** Works with all standard 2.1 mm x 5.5 mm DC plug LEDs. - • **Illuminate Your Aquarium:** Transform your aquatic space with customizable lighting! ## Overview The Fluval Digital LED Dual Lamp Timer (A3977) is designed for both freshwater and saltwater aquariums, allowing you to program sunrise, mid-day, and dusk settings. It can control up to two LED lamps simultaneously, offering on/off progressive dimming options and compatibility with all LEDs featuring a standard 2.1 mm x 5.5 mm DC plug connection. ## Description Automate your aquarium lighting system with the Fluval digital LED lamp timer. The timer lets you control sunrise, mid-day and dusk settings for up to two LED strip lights, simulating natural sun and moon cycles for a truly realistic environment. ## Features - Suitable for freshwater and Saltwater aquariums - Program sunrise, mid-day & dusk settings - Control up to 2 LED lamps simultaneously (2 x 12V, 2 x 24V, or 1 x 12V/ 1 x 24V) - On/off progressive dimming options - Compatible with all LEDs featuring a standard 2.1 mm x 5.5 mm dc plug Connection ## Images ![Fluval Digital LED Dual Lamp Timer, A3977 - Image 1](https://m.media-amazon.com/images/I/810+-4prWEL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Works well with my Innovative Marine LED *by J***Z on Reviewed in the United States on February 12, 2017* I have the Innovative Marine Nuvo Fusion 10 kit that includes the Skkye Light 18 watt LED. This timer works very well with this light. I have read many reviews that complain about the buttons used for programming. I had no issues with these. I would suggest anyone having issues to go to the Fluval web site and watch the instructional video. My one negative remark about this is that on a 24 volt system, ramping down to 1% for moonlight is still just a little bit brighter than what I would prefer. However, after a few nights, it appears that my livestock is adjusting to the slightly brighter night lighting. As to those complaining about the LEDs flashing during the ramp up and ramp down, check the voltage rating of your LED power supply. Note that this timer is rated for 12 to 24 volt DC. The LED flashing is a common issue if you try to send a lower voltage (say 24 volts) to an LED array rated for something higher (like 28 volts), I don't really know the science behind this, but I have experience similar issues when trying to power an LED array rated at 28 volts with a 24 volt power supply. I suspect it has something to do with impedance( resistance) in the LED array.***update 1-6-2018Timer is still working perfectly. now controlling 18 watt main LED fixture on channel A and 6 watt actinic supplemental.on channel B. I run the channel at 5% for moon lights.. ### ⭐ 1.0 out of 5 stars DON'T BUY!!! *by G***L on Reviewed in the United States on June 15, 2016* If I could give no stars I would! I almost never write reviews, but this POS is unbelievable! I can't program it, because when I plug it in it just cycles through the settings without me even touching it. It tries to set its own settings and I have no control over it. It's posessed! I usually give things the benefit of the doubt and even if the reviews aren't fantastic, I might try anyway and usually I don't have the problems other have, but not this time! This this is horrid. The "buttons" aren't buttons. You can't press them. They are just bumps that you are supposed to touch or something. But I can't on mine because if you just sit and watch it, it goes through settings and changes the time constantly. I can't set it! Good luck! I already ordered the Fluval Fresh and Plant with the wifi module. Hopefully this works better! ### ⭐⭐⭐⭐ 4.0 out of 5 stars Good controller. Works very well. *by R***H on Reviewed in the United States on May 23, 2017* Saw all the bad reviews. Took a chance anyway. I was not disappointed, works as described. I have 2 Aquasky Led lights, programmed controller to ramp up and down 15 minutes apart. This makes sunset and sunrise more gradual than both ramping up or down at the exact same time. Easy to program, when light is on, I still have control over what daylight effects I want. Clouds, storms and light color/temperature.Wish I could control what type of moonlight was activated at dusk. Can only get white moonlight, can't get blue moonlight after dusk.All in all the controller works very well. Haven't had any of the problems the other reviews mentioned.Would recommend to anyone with Aquasky Led lights. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.at/products/22043443-fluval-digital-led-dual-lamp-timer-a3977](https://www.desertcart.at/products/22043443-fluval-digital-led-dual-lamp-timer-a3977) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-05-12*