2:1 12k White/Blue ReefBar Aquarium LED Light 9W/Ft - Aquarium Light

The 2:1 bar means the LEDs alternate: 12k, 12k, blue, 12k, 12k, blue....  All bars have a power in and a power out to link from one to the next! CUSTOM ORDER INSTRUCTIONS: All of my ReefBar listings are the same so add items to cart and jump from listing to listing as you get the different color bars you need. Start with your initial item that is any color bar you may need and ADD dimmer and power supply option as well. The dimmer will act as your ON/OFF Switch also. Now add to your cart. (This does not force you to buy anything) Now start selecting the other bars you need one at a time with no power and no dimmer and add each to your cart ONE at a time giving you a fresh page to choose another bar each time. When ordering multiple items like this WE WILL make sure to send the correct size power supply to power what you have ordered. NOTE: If you want different colors or bars powered or dimmed differently or at different times please make sure to or