Zetlight E200S WiFi Algae Refugium LED Light – Macroalgae Growth System
The Zetlight E200S WiFi Algae LED Light is a purpose-built refugium lighting system designed to maximise macroalgae growth and improve water quality in marine aquariums. With its specialised red and blue spectrum, compact design, and smart app control, it helps reduce nitrates and phosphates naturally while supporting a stable reef ecosystem.
Key Features
Optimised Algae Growth Spectrum
Specialised spectrum peaks in the red and blue ranges (450–480nm & 580–650nm), promoting rapid macroalgae growth for effective nutrient export in reef systems.
Efficient Nutrient Control (Refugium Support)
Designed specifically for refugium use, helping reduce nitrates and phosphates naturally while improving overall water quality.
Built-in WiFi with Smart App Control
Control your lighting wirelessly via the Horizon Aqua app, allowing full customisation of schedules, intensity, and spectrum adjustments from your smartphone.
Custom Scheduling & Automation
Program multiple lighting phases throughout the day with ramping, timing, and spectrum changes tailored to different algae species.
Wide, Even Coverage Design
Provides uniform light distribution across your refugium, ensuring consistent algae growth across the entire area.
Compact & Easy Installation
Slim, space-efficient design with included mounting bracket and gooseneck arm for quick and flexible installation.
IP64 Water-Resistant Build
Engineered for humid sump environments, offering protection against splashes and moisture.
Energy Efficient Performance
Low power consumption while still delivering strong output for effective macroalgae cultivation.
LED Spectrum Breakdown
Includes a targeted algae-growth spectrum:
- White (3800–4200K)
- Blue (455–460nm)
- Cerise (620–625nm)
- Crimson (660–670nm)
Specifications
- Power: ±20–24W
- Model: E200S (WiFi Built-in)
- Control: WiFi (Horizon Aqua App)
- Coverage: ±45–60 cm (optimal refugium spread)
- Dimensions: ±21.8 × 15.3 × 1.8 cm
- Waterproof Rating: IP64
- Mounting: Gooseneck arm + bracket included
- Application: Refugium / macroalgae growth
Ideal For
- Marine reef aquariums with sumps
- Refugium setups
- Macroalgae cultivation (Chaeto, Caulerpa, etc.)
- Hobbyists looking to reduce nutrients naturally
- Reef keepers wanting app-controlled algae lighting
Why Choose the Zetlight E200S WiFi?
The E200S is a dedicated solution for refugium lighting, unlike standard reef lights that aren’t optimised for algae growth. Its targeted spectrum, energy efficiency, and smart control make it one of the best value options for maintaining nutrient balance and supporting a healthier, more stable marine aquarium ecosystem.























