VersaLinear Linear Retrofit Module Kit | Module Length 4 - 4ft 3 - 3ft 2 - 2ft | Module Quantity 1 - 1 Module 2 - 2 Modules 3 - 3 Modules 4 - 4 Modules | Lens F - Frosted C - Clear (No Lens) | / | Output Mode Empty - Normal Output HO - High Output VHO - Very High Output | / | CRI 8 - CRI > 80 | CCT 30 - 3000K 35 - 3500K 40 - 4000K 50 - 5000K |