HELLA HLA-006991371 Double Beam FF Medium Range Spread Beam Shock proof housing for more durability Double Free-Form reflectors made of high-gloss vapor-plated die cast aluminum for better light output Shock-proof housing made of fiberglass reinforced plastic projecting rim to protect the structured glass lens Three times the light output of conventional work lamps of the same size Ideal for the replacement of existing conventional halogen work lamps