high degree of light reflection,free of dizzy light,easy mounting for use in working room,classroom,shop,parking ... lamp:steel plate(white)Feature:high degree of light reflection,free of dizzy light,easy mountingPurpose:for use in working room,classroom ... Dimension LxWxHFXH1-18 650x60x75FXH1-27 950x60x75FXH2-36 1250x60x75 Arc-shaped Bracket lamp