Maxspect Razor X LED Light fixtures are made with the latest in LED technology, including Cree XT-E and XP-E LED chips that are distributed through 4 different controllable channels. Programming can be done through the onboard OLED control interface, or wirelessly with the addition of the optional Syna-G ICV6 Controller. Razor X Fixtures are made with architectural grade 6063 aluminum alloy keeping them lightweight, but also very strong while increasing heat transfer keeping the LEDs cool. The LEDs selected for the Razor X were designed to help produce enhanced growth and coloration. Providing a full range of color keeps your corals growing fast, but also gives you the control to create the most aesthetically pleasing color combination for your reef. The Razor's spectrum ranges from all the way down to UV and super actinic 410nm LEDs up to deep red at 665nm and covers almost every color in the middle. Lightweight Onboard Control Wireless Capable Connects with up to 32 RSX Fixtures Enhances Growth & Coloration Mimics natural Dawn to Dusk Includes Mounting Legs Utilizes Cree LEDs Great for tanks up to 40" long! The Maxspect Razor X 200w is perfect for any reef tank up to 40" long and will provide enough light to grow almost all type of coral. If you have a soft or LPS coral tank the 200w module can cover tanks up to 47" long with the extendable mounting legs. Maximum Coverage - 50" x 26" Effective Coverage - 48" x 22" Built-In Control Plug and Play operation means you do not have to purchase any additional controllers or software to operate and program the Razor X LED Fixtures. Each Razor X features an OLED monitor and control dial where you can easily program, and customize other settings and features of the LED fixture. Wireless Control (optional) On top of the onboard programming, every Razor X can be connected wirelessly to the Maxspect Syna-G ICV6 Connect Controller (sold separately) which will let you program and control each light from any Android or iOS device with the Syna-G app. Master/Slave Connections If you need multiple Razor X fixtures to cover your tank, you can connect 2 or more through the master/slave mode to control all of them through a single source. Just program the master and all the slaves will follow the master's program, saving you time, and eliminating possible programming mistakes. Intelligent Temperature Control The built-in temperature control system for the Razor X line of LED lights starts with the overall design of the light. As cool air is drawn up from underneath the fixture then flows through the body helping dissipate heat from the LEDs passively. The large body/heatsink is assisted by fans that help regulate the temperature even further. The fans will automatically engage when the temperature sensor reads over 131°F and will shut off when the temperature falls below 113°F keeping the operating range for the LEDs in a safe zone for a long reliable life.