18-20" Stingray 3 Pencil Thin Aquarium LED - Finnex

The 18-20" Stingray 3 Pencil Thin Aquarium LED is a freshwater LED option for everyday freshwater displays and planted setups at a lower price point.

• True 660nm deep-red LEDs.
• Adjustable maximum intensity and moonlight levels.
• 24/7 Lunar+ cycle with timeline retention when exiting the mode.
• Slim aluminum housing.
• IP67 protection against moisture and accidental water exposure.

Choose Your Fit

Select the listed length to match your aquarium and check clearance around lids and the rim. For high-demand plants, evaluate PAR and consider the Planted+ series. Install above the tank according to Finnex instructions.

Shipping & Delivery

Standard Parcel Shipping: $19.99 within the contiguous 48 United States and Washington, D.C. This item does not qualify for free standard shipping. Most in-stock orders process in 1–3 business days; supplier availability may change.

For Alaska, Hawaii, U.S. territories or international destinations, contact us before ordering for a shipping quote and eligibility check.

Need Help Matching Your Setup?

Infinity and Beyond Aquatics can help you choose the right fixture length and compatible mounting hardware.