Seachoice 06251 LED Portable Battery Operated Navigation Light alt-scp-00013 Its diaphragm is Type 304

Its diaphragm is Type 304 stainless steel

Durable light is 4 inches high

Complete with locking ring and knurled cap nut

18-8 Stainless Steel

Fits any light that uses an 1157 bulb

Seachoice 06251 LED Portable Battery Operated Navigation Light alt-scp-00013 Its diaphragm is Type 304Durable, heavy duty suction cup. Portable stern light is ideal for ski boats, sailboats and any boaters who do not want an attachment method that might mar the surface. Requires (2) "D" cell batteries. Designed for speeds up to 7 knots. For nighttime operation of small boats and tenders w o 12V systems. Not intended to meet U. S. C. G. regulations. Not for use on boats that can exceed seven knots.