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Aquarium Lighting is one of the most important parts of a successful reef aquarium or planted freshwater tank. It is also amongst the most confusing and misunderstood of all aquarium supplies and equipment. Please give us a call if you need help selecting an appropriate lighting setup for your system. Here you'll find LED aquarium lights, metal halide aquarium lights, specialty products like moonlight aquarium lights independent lighting components like ballasts and reflectors, and lighting systems and timers.

At AquaCave, we offer some of the best selection and best prices on Aquarium Lighting, Reef Lighting, LED, T5, Metal Halide, Planted, and refugium lighting for your marine, reef, and freshwater aquarium.

  • Fluval Plant 4.0 LED Fixture, 46W, 35-49″ Fluval Plant 4.0 LED Fixture, 46W, 35-49″ Fluval Plant 4.0 LED Fixture, 46W, 35-49″ Fluval Plant 4.0 LED Fixture, 46W, 35-49″ Fluval Plant 4.0 LED Fixture, 46W, 35-49″

    Fluval

    Fluval Plant 4.0 LED Fixture, 46W, 35-49″

    Fluval Plant 4.0 LED Fixture, 46W, 35-49″ The German-engineered Fluval Plant 4.0 LED delivers brilliant, spectrum-specific illumination for optimal plant growth, color and health. A superior 90 CRI rating guarantees vibrant colors, bringing your...

    Was: $269.99
    Now: $214.99
  • Fluval Plant 4.0 LED Fixture, 32W, 23-35″ Fluval Plant 4.0 LED Fixture, 32W, 23-35″ Fluval Plant 4.0 LED Fixture, 32W, 23-35″ Fluval Plant 4.0 LED Fixture, 32W, 23-35″ Fluval Plant 4.0 LED Fixture, 32W, 23-35″

    Fluval

    Fluval Plant 4.0 LED Fixture, 32W, 23-35″

    Fluval Plant 4.0 LED Fixture, 32W, 23-35″ The German-engineered Fluval Plant 4.0 LED delivers brilliant, spectrum-specific illumination for optimal plant growth, color and health. A superior 90 CRI rating guarantees vibrant colors, bringing your...

    Was: $229.99
    Now: $209.99
  • EcoTech Set of 2 RMS Arms EcoTech Set of 2 RMS Arms EcoTech Set of 2 RMS Arms EcoTech Set of 2 RMS Arms EcoTech Set of 2 RMS Arms

    EcoTech Marine

    EcoTech Set of 2 RMS Arms

    EcoTech Set of 2 RMS Arms Multi Light RMS The multi-light RMS offers a customizable multi light mount solution for Radion XR30 and Radion XR15 lights. The multi-light RMS system features. Built-in cable management Compatible with...

    $189.99
  • Fluval Reef 4.0 LED Fixture, 22W, 15-24″ Fluval Reef 4.0 LED Fixture, 22W, 15-24″ Fluval Reef 4.0 LED Fixture, 22W, 15-24″ Fluval Reef 4.0 LED Fixture, 22W, 15-24″ Fluval Reef 4.0 LED Fixture, 22W, 15-24″

    Fluval

    Fluval Reef 4.0 LED Fixture, 22W, 15-24″

    Fluval Reef 4.0 LED Fixture, 22W, 15-24″ The German-engineered Fluval Reef 4.0 LED doesn’t just illuminate your saltwater aquarium, it transforms it. With its critical actinic range, this full-spectrum lighting system gives your corals...

    Was: $199.99
    Now: $179.99
  • Neptune GRO Refugium Light with Flat Bracket Mount Neptune GRO Refugium Light with Flat Bracket Mount Neptune GRO Refugium Light with Flat Bracket Mount Neptune GRO Refugium Light with Flat Bracket Mount Neptune GRO Refugium Light with Flat Bracket Mount

    Neptune Systems

    Neptune GRO Refugium Light with Flat Bracket Mount

    Neptune GRO Refugium Light with Flat Bracket Mount Support Natural Filtration with the GRO Compact and efficient light output 84 LEDs, optimum growth spectrum Large surface with even distribution IP64 Water resistant design Can operate standalone...

    $179.99
  • Neptune GRO Refugium Light with Pipe Mount Neptune GRO Refugium Light with Pipe Mount Neptune GRO Refugium Light with Pipe Mount Neptune GRO Refugium Light with Pipe Mount Neptune GRO Refugium Light with Pipe Mount

    Neptune Systems

    Neptune GRO Refugium Light with Pipe Mount

    Neptune GRO Refugium Light with Pipe Mount Compact and efficient light output 84 LEDs, optimum growth spectrum Large surface with even distribution IP64 Water resistant design Can operate standalone with optional power supply Includes gooseneck and...

    $179.99
  • 36" Aruba Sun V T5 Retro Kt - 2 x 39w - Hamilton Technology  36" Aruba Sun V T5 Retro Kt - 2 x 39w - Hamilton Technology  36" Aruba Sun V T5 Retro Kt - 2 x 39w - Hamilton Technology  36" Aruba Sun V T5 Retro Kt - 2 x 39w - Hamilton Technology

    Hamilton Technology

    36" Aruba Sun V T5 Retro Kt - 2 x 39w - Hamilton Technology

    36" Aruba Sun V T5 Retro Kt - 2 x 39w - Hamilton Technology * Durable German mirror finish, corrosion resistant, anodized aluminum reflectors rotate 180 degrees and wrap-around T5 tubes boosting light output, directing light toward your aquarium.*...

    Was: $189.95
    Now: $170.95
  • AquaIllumination Blade Coral Grow 12" Smart Strip LED Light AquaIllumination Blade Coral Grow 12" Smart Strip LED Light AquaIllumination Blade Coral Grow 12" Smart Strip LED Light

    Aqua Illuminations

    AquaIllumination Blade Coral Grow 12" Smart Strip LED Light

    AquaIllumination Blade Coral Grow 12" Smart Strip LED Light Available in 7 different sizes from 12 to 66 inches Balanced blue and white spectrum optimized for coral photosynthesis Mounting solutions for every tank need Cluster group LED diodes with 95...

    $169.99
  • Dalua Illumagic Pixel Refugium LED Bundle

    DALUA

    Dalua Illumagic Pixel Refugium LED Bundle

    Dalua Illumagic Pixel Refugium LED Bundle The Dalua Illumagic Pixel Refugium LED Bundle is a plug and play package that provides users the ability to power and mount their Illumagic Pixel LED light. This bundle includes the following items: Dalua...

    $169.00
  • Fluval Aquasky LED with Bluetooth - 35W (48″-60") Fluval Aquasky LED with Bluetooth - 35W (48″-60")

    Fluval

    Fluval Aquasky LED with Bluetooth - 35W (48″-60")

    Fluval Aquasky LED with Bluetooth - 35 W. (48″-60") Operated exclusively via the FluvalSmart App on your mobile device, Aquasky allows you to control the light output of red, green blue and super bright 6500K white LEDs for infinite color blends...

    $159.99
  • Fluval Plant 4.0 LED Fixture, 22W, 15-24″ Fluval Plant 4.0 LED Fixture, 22W, 15-24″ Fluval Plant 4.0 LED Fixture, 22W, 15-24″ Fluval Plant 4.0 LED Fixture, 22W, 15-24″ Fluval Plant 4.0 LED Fixture, 22W, 15-24″

    Fluval

    Fluval Plant 4.0 LED Fixture, 22W, 15-24″

    Fluval Plant 4.0 LED Fixture, 22W, 15-24″ The German-engineered Fluval Plant 4.0 LED delivers brilliant, spectrum-specific illumination for optimal plant growth, color and health. A superior 90 CRI rating guarantees vibrant colors, bringing your...

    Was: $169.99
    Now: $159.99
  • ReefBreeders Meridian BOT Mount - Set of 2 Arms ReefBreeders Meridian BOT Mount - Set of 2 Arms

    ReefBreeders

    ReefBreeders Meridian BOT Mount - Set of 2 Arms

    ReefBreeders Meridian BOT Mount - Set of 2 Arms Back of tank mount designed for the Meridian and Meridian Edge. Compatible with most large, quality built euro-brace tanks. Please ensure that the section of Euro-bracing you mount to is strong enough to...

    $159.99
  • Milwaukee MW700 PRO Lux (Light) Meter Milwaukee MW700 PRO Lux (Light) Meter Milwaukee MW700 PRO Lux (Light) Meter Milwaukee MW700 PRO Lux (Light) Meter

    Milwaukee Instruments

    Milwaukee MW700 PRO Lux (Light) Meter

    Milwaukee MW700 PRO Lux (Light) Meter DESCRIPTION The MW700 is a portable Lux meter designed to perform light measurements from 0 to 50000 Lux. This handy and ergonomically designed Lux meter is ideal for anyone looking for fast and reliable...

    $158.70
  • Finnex Planted+ 24/7 HLC - 48" Aquarium LED Light Finnex Planted+ 24/7 HLC - 48" Aquarium LED Light Finnex Planted+ 24/7 HLC - 48" Aquarium LED Light Finnex Planted+ 24/7 HLC - 48" Aquarium LED Light Finnex Planted+ 24/7 HLC - 48" Aquarium LED Light

    Finnex

    Finnex Planted+ 24/7 HLC - 48" Aquarium LED Light

    Finnex Planted+ 24/7 HLC - 48" Aquarium LED Light 24/7 CC Mode: Fully Customizable Sunrise & Sunset Razor thin eye CATCHING aluminum hood Hands Free: Simulating Fire Red Sunrise to Blue Starry Night Built in LED Sensor  The Finnex...

    $154.99
  • Fluval Plant 3.0 LED Fixture 22W, 15"-24" Fluval Plant 3.0 LED Fixture 22W, 15"-24" Fluval Plant 3.0 LED Fixture 22W, 15"-24" Fluval Plant 3.0 LED Fixture 22W, 15"-24" Fluval Plant 3.0 LED Fixture 22W, 15"-24"

    Fluval

    Fluval Plant 3.0 LED Fixture 22W, 15"-24"

    Fluval Plant 3.0 LED Fixture 22W, 15"-24" DESCRIPTION The Fluval Plant 3.0 Bluetooth LED is designed for hobbyists who want to maintain a thriving live plant aquarium. This LED features free Fluval SmartApp technology, and the light offers a variety of...

    $149.99
  • Fluval Reef 4.0 LED Nano, 25W Fluval Reef 4.0 LED Nano, 25W Fluval Reef 4.0 LED Nano, 25W Fluval Reef 4.0 LED Nano, 25W Fluval Reef 4.0 LED Nano, 25W

    Fluval

    Fluval Reef 4.0 LED Nano, 25W

    Fluval Reef 4.0 LED Nano, 25W The German-engineered Fluval Reef Nano 4.0 LED doesn’t just illuminate your saltwater aquarium, it transforms it. With its critical actinic range, this full-spectrum lighting system gives your corals exactly what they...

    Was: $159.99
    Now: $149.99
  • Tunze Aquawind Eco Chic Fan Tunze Aquawind Eco Chic Fan Tunze Aquawind Eco Chic Fan Tunze Aquawind Eco Chic Fan

    Tunze

    Tunze Aquawind Eco Chic Fan

    Tunze Aquawind Eco Chic The TUNZE® Aquawind eco-chic 7028.500 is a very low-noise aquarium ventilator provided with 12 V safety low voltage and it is easy to install on the edge of aquariums with a glass thickness of 0 up to 22 mm (0” - 0.866”). The...

    $149.99
  • 60" 2x80W Miro-4 T5 Retrofit Kit 60" 2x80W Miro-4 T5 Retrofit Kit

    LET Lighting

    60" 2x80W Miro-4 T5 Retrofit Kit

    60" 2x80W Miro-4 T5 Retrofit KitEverything you'll need is in the box Moisture-proof caps High-ouput ballast High polished aluminum Miro-4 Reflectors Comes with easy to follow directions Great customer support LET Lighting kits are backed by a 1 year...

    $149.95
  •  Kessil A80 Tuna Blue LED  Kessil A80 Tuna Blue LED  Kessil A80 Tuna Blue LED  Kessil A80 Tuna Blue LED  Kessil A80 Tuna Blue LED

    Kessil

    Kessil A80 Tuna Blue LED

    Kessil A80 TUNA Blue, Controllable LED Aquarium Light Design Innovative heat dissipation allows for fanless, low maintenance, shell-shaped design. Advanced optics create smooth color mixing and a beautiful shimmer. Dense Matrix LED Array Our unique,...

    $149.00
  •  Kessil H80 Tuna Flora LED  Kessil H80 Tuna Flora LED  Kessil H80 Tuna Flora LED

    Kessil

    Kessil H80 Tuna Flora LED

    Kessil H80 Tuna Flora LED Grow Light Kessil Lighting, a leading manufacturer of LED horticulture lighting, is proud to announce the release of the groundbreaking Tuna Flora line. Together, the H80 Tuna...

    $149.00
  •  48" 2x54W Dimmable MIRO T5 Retrofit Kit  48" 2x54W Dimmable MIRO T5 Retrofit Kit

    LET Lighting

    48" 2x54W Dimmable MIRO T5 Retrofit Kit

    48" 2x54W Dimmable MIRO T5 Retrofit Kit Get the perfect kit every time.  Control the intensity of T5 bulbs from 0-10v input. Sold as two bulb kits.  Mix + match sizes. Use two bulbs in one size and two bulbs in another. The combinations are...

    $144.95
  • AquaIllumination AI HMS Rail - 72"

    Aqua Illuminations

    AquaIllumination AI HMS Rail - 72"

    AquaIllumination AI HMS Rail - 72" AI HMS 72" (73.5") Horizontal Rail (fixture Brackets Sold Separately) AquaIllumination AI HMS Rail - 72" AI HMS 72" (73.5") Horizontal Rail (fixture Brackets Sold Separately) Product code: 6141Item No...

    $139.99
  • Fluval Plant 4.0 LED Nano, 20W Fluval Plant 4.0 LED Nano, 20W Fluval Plant 4.0 LED Nano, 20W Fluval Plant 4.0 LED Nano, 20W Fluval Plant 4.0 LED Nano, 20W

    Fluval

    Fluval Plant 4.0 LED Nano, 20W

    Fluval Plant 4.0 LED Nano, 20W The German-engineered Fluval Plant 4.0 Nano LED delivers brilliant, spectrum-specific illumination for optimal plant growth, color and health in smaller aquariums. A superior 90 CRI rating guarantees vibrant colors,...

    $139.99
  • Finnex Planted+ 24/7 HLC - 36" Aquarium LED Light Finnex Planted+ 24/7 HLC - 36" Aquarium LED Light Finnex Planted+ 24/7 HLC - 36" Aquarium LED Light Finnex Planted+ 24/7 HLC - 36" Aquarium LED Light Finnex Planted+ 24/7 HLC - 36" Aquarium LED Light

    Finnex

    Finnex Planted+ 24/7 HLC - 36" Aquarium LED Light

    Finnex Planted+ 24/7 HLC - 36" Aquarium LED Light 24/7 CC Mode: Fully Customizable Sunrise & Sunset Razor thin eye CATCHING aluminum hood Hands Free: Simulating Fire Red Sunrise to Blue Starry Night Built in LED Sensor  The Finnex...

    $134.99
  • Fluval Aquasky LED with Bluetooth - 27W (36″-48") Fluval Aquasky LED with Bluetooth - 27W (36″-48")

    Fluval

    Fluval Aquasky LED with Bluetooth - 27W (36″-48")

    Fluval Aquasky LED with Bluetooth - 27 W. (36″-48") Operated exclusively via the FluvalSmart App on your mobile device, Aquasky allows you to control the light output of red, green blue and super bright 6500K white LEDs for infinite color blends...

    $134.99
  •  Ecotech Radion XR-15 RMS Tank Mount Bracket - Gen 6 Ready  Ecotech Radion XR-15 RMS Tank Mount Bracket - Gen 6 Ready

    EcoTech Marine

    Ecotech Radion XR-15 RMS Tank Mount Bracket - Gen 6 Ready

    Ecotech Radion XR15 RMS Tank Mount Bracket.  Compatible with G5 and G6 gen. fixtures. Two specialized kits designed for XR15 and XR30 modelRadions. Each kit contains everything needed to tank mount a Radion light on almost any standard or rimless tank...

    $129.99
  • AquaIllumination Blade LED Hanging Kit - 6 Lights AquaIllumination Blade LED Hanging Kit - 6 Lights

    Aqua Illuminations

    AquaIllumination Blade LED Hanging Kit - 6 Lights

    AquaIllumination Blade LED Hanging Kit - 6 Lights A Sleek & Easy Way to Hang your Blade LED Strips! Compatible with all versions of Blade Three available sizes to hang up to 6 Blade light fixtures Finding a mounting solution that works for...

    $129.99
  • 24" 2x24W Dimmable MIRO T5 Retrofit Kit 24" 2x24W Dimmable MIRO T5 Retrofit Kit

    LET Lighting

    24" 2x24W Dimmable MIRO T5 Retrofit Kit

    24" 2x24W Dimmable MIRO T5 Retrofit Kit Get the perfect kit every time.  Control the intensity of T5 bulbs from 0-10v input. Sold as two bulb kits. Mix + match sizes. Use two bulbs in one size and two bulbs in another. The combinations are...

    $129.95
  • 36" 2x39W Dimmable MIRO T5 Retrofit Kit 36" 2x39W Dimmable MIRO T5 Retrofit Kit

    LET Lighting

    36" 2x39W Dimmable MIRO T5 Retrofit Kit

    36" 2x39W Dimmable MIRO T5 Retrofit Kit Get the perfect kit every time.  Control the intensity of T5 bulbs from 0-10v input. Sold as two bulb kits.  Mix + match sizes. Use two bulbs in one size and two bulbs in another. The combinations are...

    $129.95
  • Dalua Illumagic Pixel Dual Rear Mounting Arm

    DALUA

    Dalua Illumagic Pixel Dual Rear Mounting Arm

    Dalua Illumagic Pixel Dual Rear Mounting Arm The Dalua Illumagic Pixel Dual Rear Mounting Arm is specifically designed to securely hold two Pixel LED light fixtures. Made from midnight black aluminum, this sturdy, no-bend mounting solution also serves...

    $129.00
  • Dymax Freshwater 48W LED Light Dymax Freshwater 48W LED Light Dymax Freshwater 48W LED Light Dymax Freshwater 48W LED Light Dymax Freshwater 48W LED Light

    Dymax

    Dymax Freshwater 48W LED Light

    Dymax Freshwater 48W LED Light The Dymax SpaceX LED lights for freshwater aquariums are designed to support plant growth and color vibrancy with a full spectrum of lighting from multiple LED sources. Fauna LED Light for Optimal Plant Growth The Dymax...

    Was: $159.99
    Now: $127.99
  • AquaIllumination AI HMS Rail - 60"

    Aqua Illuminations

    AquaIllumination AI HMS Rail - 60"

    AquaIllumination AI HMS Rail - 60" AI HMS 60" (61.5") Horizontal Rail (fixture Brackets Sold Separately) AquaIllumination AI HMS Rail - 60" AI HMS 60" (61.5") Horizontal Rail (fixture Brackets Sold Separately) Product code: 6140Item No...

    $119.99
  • AquaIllumination Blade LED Hanging Kit - 4 Lights AquaIllumination Blade LED Hanging Kit - 4 Lights

    Aqua Illuminations

    AquaIllumination Blade LED Hanging Kit - 4 Lights

    AquaIllumination Blade LED Hanging Kit - 4 Lights A Sleek & Easy Way to Hang your Blade LED Strips! Compatible with all versions of Blade Three available sizes to hang up to 6 Blade light fixtures Finding a mounting solution that works for...

    $119.99
  • Aquatop SkyAqua Actinic Blue LED 48"-54"

    AQUATOP

    Aquatop SkyAqua Actinic Blue LED 48"-54"

    Aquatop SkyAqua Actinic Blue LED 48"-54" AQUATOP SAQB-4854 SkyAqua Actinic Blue 48"-54" LED Aquarium Light Bring life and color to your underwater habitat with the Aquatop SkyAqua Actinic Blue LED Lighting Series! This energy efficient LED lighting...

    $119.99
  • Fluval Marine Nano LED w/Bluetooth 20W Fluval Marine Nano LED w/Bluetooth 20W

    Fluval

    Fluval Marine Nano LED w/Bluetooth 20W

    Fluval Marine Nano LED w/Bluetooth 20W Operated exclusively via the FluvalSmart App on your mobile device, Marine Nano LED is designed to help you grow brighter, more robust corals in a small saltwater aquarium.     Programmable, gradual 24-hour...

    $119.99
  • Dalua Illumagic Pixel Electronic Power Supply, Quad

    DALUA

    Dalua Illumagic Pixel Electronic Power Supply, Quad

    Dalua Illumagic Pixel Electronic Power Supply, Quad Compact and efficient, the Dalua Illumagic Pixel Electronic Power Supply powers one to four Pixel LED lights. A reliable solution, it ensures consistent performance and longevity. Specifications Cable...

    $119.00
  •  Finnex FugeRay Planted Plus U36WM  Finnex FugeRay Planted Plus U36WM  Finnex FugeRay Planted Plus U36WM  Finnex FugeRay Planted Plus U36WM

    Finnex

    Finnex FugeRay Planted Plus U36WM

    Finnex FugeRay Planted Plus U 36"   This Contemporary Ultra Slim designed LED fixture features a series of LEDs to promote Marine Refugium & Freshwater growth.  Unlike the Ray II which incorporates multiple High Output LEDS pinched...

    MSRP: $129.95
    $114.99
  • ReefBreeders Pico LED V2 - Freshwater ReefBreeders Pico LED V2 - Freshwater ReefBreeders Pico LED V2 - Freshwater ReefBreeders Pico LED V2 - Freshwater ReefBreeders Pico LED V2 - Freshwater

    ReefBreeders

    ReefBreeders Pico LED V2 - Freshwater

    ReefBreeders Pico LED V2 - Freshwater The new and improved ReefBreeders Pico LED V2 has been redesigned to be user-friendly with advanced features and twice the power of the V1. The Pico LED V2 has 15watts of LED power and includes a built in...

    $114.99
  • ReefBreeders Pico LED V2 - Refugium ReefBreeders Pico LED V2 - Refugium ReefBreeders Pico LED V2 - Refugium ReefBreeders Pico LED V2 - Refugium ReefBreeders Pico LED V2 - Refugium

    ReefBreeders

    ReefBreeders Pico LED V2 - Refugium

    ReefBreeders Pico LED V2 - Refugium The new and improved ReefBreeders Pico LED V2 has been redesigned to be user-friendly with advanced features and twice the power of the V1. The Pico LED V2 has 15watts of LED power and includes a built in two-channel...

    $114.99
  • ReefBreeders Pico LED V2 - Saltwater Reef ReefBreeders Pico LED V2 - Saltwater Reef ReefBreeders Pico LED V2 - Saltwater Reef ReefBreeders Pico LED V2 - Saltwater Reef ReefBreeders Pico LED V2 - Saltwater Reef

    ReefBreeders

    ReefBreeders Pico LED V2 - Saltwater Reef

    ReefBreeders Pico LED V2 - Saltwater Reef The new and improved ReefBreeders Pico LED V2 has been redesigned to be user-friendly with advanced features and twice the power of the V1. The Pico LED V2 has 15watts of LED power and includes a built in...

    $114.99
  • ATI Straton X Mounting Arm

    ATI

    ATI Straton X Mounting Arm

    ATI Straton X Mounting Arm The ATI Straton X Mounting Arm is a premium, fully adjustable solution designed to secure the Straton X LED light fixture to the rear glass of your aquarium. Engineered for seamless integration, it eliminates visible mounting...

    $114.90
  • AquaIllumination AI HMS Double Arm Kit AquaIllumination AI HMS Double Arm Kit AquaIllumination AI HMS Double Arm Kit AquaIllumination AI HMS Double Arm Kit

    Aqua Illuminations

    AquaIllumination AI HMS Double Arm Kit

    AquaIllumination AI HMS Double Arm Kit AI HMS Dual Arm Mount Rail Kit (Horizontal Rail and Fixture Brackets Sold Separately) Great for mounting multiple lights on one rail across your tank. Requires a mounting rail to fit your tank, and brackets...

    $109.99
  • AquaIllumination AI HMS Rail - 48"

    Aqua Illuminations

    AquaIllumination AI HMS Rail - 48"

    AquaIllumination AI HMS Rail - 48" AI HMS 48" (49.5") Horizontal Rail (fixture Brackets Sold Separately) AquaIllumination AI HMS Rail - 48" AI HMS 48" (49.5") Horizontal Rail (fixture Brackets Sold Separately) Product code: 6139Item No...

    $109.99