TYPE Color Wavelength Light Base Number of Leds Watts CER121 CER221 Red 620nm Bea15S 12 & 5 1W 1.5W CER122 CER222 Red 620nm BAY15D 12 & 5 1W 1.5W CEY141 CEY241 Yellow 590nm Bea15S 12 & 5 1W 1.5W