Material: aluminum Light source: LED Chip: Philips 3030 Input voltage: AC85-265V; Color temperature: 3000-6500K optional Life time: 50000h Luminous efficiency: 110-120LM/W Parameters in series Item No Size Life time Color temperature 100W,270.43*H317.5mm 50000h 3000-6500K 150W,270.43*H347.5mm 50000h 3000-6500K