Type: 10W\16W\21W\24W\28W\38W\55W. Rending index.>=80, Life>10000hs, Color temperature: 2700-6500K SDCM<=5, Have passed CE\TUV\ISO9001\ROHS certificate, The base? type is GR8/GR10q Model Wattage(W) Lumens(Lm) YDN10-2D YDW10-2D 10 630 YDN16-2D YDW16-2D 16 1050 YDN21-2D YDW21-2D 21 1380 YDN24-2D YDW24-2D 24 1480 YDN28-2D YDW28-2D 28 1850 YDN38-2D YDW38-2D 38 2630 YDN55-2D 55 3800