... !!! super bright led bulb 12w BUL-31-12W-CW Features1, light source of superior quality, modern design2, high color rendering index3 ... , low light degradation4, no noise ,no flicker5, no UV or IR radiation6 ... % 6 Beaming efficiency 75Lm /W 7 Beam Angle 160° 8 Light Base E27/E26 9 Material Aluminum 10 Life Time 40,000hours ...