Twinstar LEDs combine sleek design with true full‑spectrum performance, earning a loyal following in the aquarium community. By delivering the ideal 380–780nm range, these lights reveal the real colors of your plants and fish without the muddy yellow tones common in basic fixtures. Your aquascape ends up looking sharp, vibrant, and beautifully clear. The E Series Vr. IV is the happy medium of the Twinstar lineup, offering a significant power boost over the C Line while remaining more accessible than the flagship S Series. Engineered for versatility, this popular fixture provides the intensity required for moderate to high-light demanding plants. With the included dimmer, it becomes a true all-arounder, easily dialed back for low-tech Anubias, Bucephalandra, and Mosses, or cranked up for lush stem growth. Comparing Twinstar lights? Check out 'Which Twinstar is Best for You' HERE! Key Features & Benefits Provides immediate out-of-the-box control to customize intensity based on your tank's specific CO2 and nutrient levels. Features sturdy, fixed-width legs that sit securely on the glass of rimless aquariums for a clean, professional aesthetic. The 380–780nm range covers everything your plants need to thrive, flourish, and undergo healthy photosynthesis. Technical Specifications Check the table below to find the perfect match for your tank. Note that the Version IV features fixed legs for a secure fit on specific tank sizes. For an adjustable version, see the Twinstar E Series Vr. V. Model Dimensions (in) W x D x H Lumens Watts Glass Thickness (mm) 300E 11.8 x 3.74 x 3.27 1000 16 5 450E 17.72 x 3.74 x 3.27 1850 28 5 600E 23.50 x 4.92 x 3.98 2400 40 6 900E 35.40 x 4.92 x 3.98 3750 60 10 Tank Sizing Recommendations: 300E: UNS 30 models 450E: UNS 45 models 600E: UNS 60 models 900E: UNS 90 models* *900E model does not fit UNS 90L and 90B tank Choosing the right intensity is key to a healthy tank. Check out our guide on Lighting Requirements for a Planted Aquarium to see how to pair this light with your plant choice!