The 380 Series is a must for any explosive atmosphere location! This product has five different hub entries at each end, enabling the installer to wire the fixture at more desirable angles. Center ballast placement provides a more balanced fixture for ease of installation and weight distribution. The 380 Series is available in 2' & 4' lengths for 2, 3, & 4 lamp combinations in T5, T5HO, T8, T8HO. Lamps included.