They are designed for one-handed use

The aluminum anode is designed specifically for the SP30/40 and SE30/40 models and ensures long-lasting and effective protection of the equipment

so it only pumps when you press down

Nauticled G4 bi-pin bulb is designed for use on board boats

Hella, NaviLED Pro styrbord lanterne 3 nm hvid 90x87x57 mm BL135073 They are designed for one-handedHella NaviLED Pro starboard navigation light is designed to ensure visibility on the water with a range of 3 NM. The light is made of impact resistant and UV resistant acrylic and complies with international standards for navigation lights. Brand: Hella Weight: 0. 34 kg Dimensions: HxWxD 90x87x57 mm Color: White Approval: ABYC C 5, Maritime NZ, CE, RCM IP rating: IP67 Material: Impact resistant and UV resistant acrylic Type: starboard Voltage: 9 33 V