. M-210 & M-349 are round type and oval type advertising light. . M-210 is the round type back light . Size: 85 mm x 7.9 mm . Inside build 15 pcs white top lamp, illumination is even. . M-349 is the oval type back light . Size: 88 x 67 x 8.9 mm . Inside build 12 pcs white top lamp, illumination is even. . M-210 voltage 12 V D.C current 150 mA . Bright 35 - 50 cd/cm2 . M-349 voltage 12 V D.C. current 72 mA . Bright 30 - 45 cd/cm2 . Life time: 10000 - 20000 HRS. . This product use in beer . Machine/drink/advertising logo Quantity Per Month: 50 K PCS Delivery Way - Date Of Delivery: 30Days