Is this water resistant Because my tank has a high evaporation

Hi Diego, You really need to have a glass or plexiglass cover for this. The manufacturer recommends use over a glass aquarium panel, so I wouldn't trust possible exposure to water.

How well does this work for soft corals?

I dont know i don't have any corals in my tank. I think it would be ok though. Its pretty bright and is a full spectrum light. You can also adjust the brightness.

The light has three options- yellow/white, blue/white, and blue. The timer only adjusts for yellow/white and blue. What is the blue/white used for?

I use it for a few hours at night. It makes my corals look good.

Can I use 2 of the 24-30 inch for my 55 gallon tank?

i feel like it would be an awkward fit unless you made a rail/hanger for them.

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NICREW ClassicLED Marine Saltwater Aquarium Light, 20W for 18–24 inch Tanks

Product ID: 173394705

Details

Color
Black
Finish Type
Powder Coated
Light Source Type
LED
Material
Aluminum
Shape
Rectangular

⏰Day+night controller with sunrise & sunset simulation

🌈Full spectrum RGB + 10,000K white for natural color balance

🔵445nm & 460nm actinic blue LEDs for vibrant marine life

R2668

Duties & taxes included

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Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌊 Illuminate your underwater world like a pro — because your marine life deserves the spotlight!

DURABILITY BOOST TIP - Pair with a glass or acrylic canopy to protect your investment from moisture and extend the lifespan of your lighting system.
VIVID MARINE SPECTRUM - Optimized actinic blue and full spectrum LEDs create stunning, natural saltwater visuals that make your tank the centerpiece of any room.
LOW PROFILE SLEEK DESIGN - Modern, slim fixture blends seamlessly with your aquarium setup, elevating your space without bulk or distraction.
DYNAMIC DAY NIGHT CONTROL - Simulate natural sunlight cycles with gradual ramping for healthier fish and corals, enhancing your aquarium’s ecosystem effortlessly.
VERSATILE FIT EXPANDABLE - Adjustable brackets fit 18-24 inch tanks, rimless or framed, with options to add a second light for SPS coral enthusiasts.

The NICREW ClassicLED Marine Saltwater Aquarium Light is a 20W LED fixture designed for 18-24 inch tanks, featuring a balanced spectrum of 445nm & 460nm blue, 10,000K white, and RGB LEDs. It includes a day+night controller for customizable light intensity and natural sunrise/sunset effects, supports a variety of saltwater species including fish and corals, and comes with adjustable brackets for versatile tank compatibility.

Specifications

ASIN	B0819MQQ76
ASIN	B0819MQQ76
Amperage	1 A
Best Sellers Rank	#30,036 in Pet Supplies ( See Top 100 in Pet Supplies ) #79 in Aquarium Lights
Brand Name	NICREW
Color	Black
Color Temperature	10000 Kelvin
Customer Reviews	4.3 4.3 out of 5 stars (1,814)
Date First Available	November 10, 2019
Finish Types	Powder Coated
Item Dimensions L x W x H	16.2"L x 24"W x 1.7"H
Item Weight	0.92 kg
Item model number	N14802
Light Source Special Features	rgb
Light Source Type	LED
Light Source Wattage	20 watts
Manufacturer	NICREW
Manufacturer	NICREW
Manufacturer Part Number	N14802
Material Type	Aluminum
Maximum Compatible Light Source Wattage	20 watts
Model Number	N14802
Mounting Type	frame mount
Number of Items	1
Number of Light Sources	36
Power Source	Corded Electric
Product Dimensions	16.2 x 24 x 1.7 inches; 2.03 pounds
Shade Material	acrylic,glass
Shape	Rectangular
Style Name	Classic
Unit Count	1 Count
Voltage	20 volts
Wattage	20 watts

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TrustScore 4.5 | 7,300+ reviews

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