LEDSION LED Retrofit lamp is designed to retrofit traditional MH or HPS light bulbs with a E39 Mogul base, which well fit well to traditional street light housing, flood light, wall pack or other outdoor housings. with 130lm/W efficiency, and hanging wires to help it not fall off the fixture, also there is heat dissipation holes around the base, make it always low temperature while working. ideal for replacing 60-100W traditional bulbs.