Stair LED Lights 1 . MATERIAL: 99.9% Pure aluminum profile + High transmittance PMMA/PC cover+ LED Strip 2. Available Length: 0.5M, 1M, 2M, 2.5M, 3M etc 3. Working Voltage: 12V/24V DC or 200-240V AC 4. LED Efficiency: 100-120lm/W 5. LED View Angle(2θ1/2): 100 degree 6. CRI >80 ...