WYZM 20-Pack High Power 3W LED Bead Emitters with Star PCB,14000k Cold White,455nm Royal Blue,660nm Red,90LM/W for DIY LED Aquarium Light,LED Grow Light (660nm Red) 20-Pack High Power 3W LED Bead Emitters with Star PCB 660nm deep red,1.9~2.3V DC,550mA All led emitters are soldered on 20mm star PCB