... to protect the parts on the back of the bulb Product No:G4 5050SMD led bulbItem No: G412006W50TS ... -pinProduct Feature:1:This G4 led bulb is no UV, IR or other deleterious radiation. ... .3:An ideal replacement for traditional G4 halogen bulb,energy saving.4:There is a plastic cover ... to protect the parts on the back of the bulb. Product Description1:Model No: G42:LED quantity: 6SMD3 ...