ML-1 Spreader/Deck LightForespar(R) now offers two mast light systems of superior quality. Model ML-1 is a deck light designed primarily for installation on the mast just below the spreaders. Model ML-2 is a combination deck-steaming light with separate switching, to be mounted on the forward part of the mast.The ML-1 and ML-2 lights feature a durable molded polymer housing assembly with a readily adaptable wraparound mounting apron to accommodate virtually any mast surface curvature. For 12V systems. Replacement bulbs are available from Forespar(R) and most marine dealers.Features:Lightweight Rugged Composite Material Adaptable to Mast Radius of Ease in Mounting 20WAdaptable to Mast Radius of Ease in Mounting20W Easily Replaceable Halogen Type Bulb 1.4 ampsWeighs 4 oz. - Measures 3-5/8" VerticallyProvided with 6" of Twin-Lead WireMolded BodyAvailable in black finish onlyReplacement bottom ring for NL-1 & 2Top bulb ML-2Bottom Bulb ML-1 & 2.Top Clear Lens, ML-2 only.Protect your mast lights from sails and birds