... )OEM Mould Design,quick sample 4)Various Size Smart Dimming Ballast T5 power Shell/ Housing/ Case/ CasingSpecification:Material: Alluminum Alloy: 1x, ... , 3x, 4x, 5x, 6x, 7x seriesTemper: O, T1, T4, T5, T6, H12Shape:Square, Rectangle Shell/ Case/ HousingSize: Flexible SizeSurface Treatment ... along with a thorough understanding of customer requirement. Smart Dimming Ballast T5 power Cover/ Housing/ Case