Store Retrofits Store / Retrofits Magnetic LED Strip Retrofit 2ft Magnetic LED Strip Retrofit 2ft Magnetic LED Strip Retrofit 4ft Magnetic LED Strip Retrofit 4ft Troffer Series Retrofits 2x2 - 24W / 36W Troffer Series Retrofits 2x2 - 24W / 36W Troffer Series Retrofits 2x4 - 36W / 42W / 50W Troffer Series Retrofits 2x4 - 36W / 42W / 50W Type C Tubes Type C Tubes