... board bulb 1,no UV, IR or other deleterious radiation 2,plastic cover to protect the parts on the back of the ... bulb Product No:G4SMD led board bulbItem No:G430009X50TS- ... is a plastic cover to protect the parts on the back of the bulb.4:About this G4 5050SMD ... as low as 3W7:Warranty: one years8:Terms of payment : T/T , Western Union, Paypal9:Packing ...