Sea-Dog Dome Light 4 Inch Lens 304 Stainless Steel 12V Surface Mount Cabin Light 400190-1
The Sea-Dog 400190-1 is a 4 inch dome light built for boat cabins, helms, and below-deck spaces where a durable, corrosion-resistant fixture is needed. It is stamped from 304 stainless steel, so it resists the salt air and moisture common on board without pitting or rusting over time. The light comes prewired with an on/off toggle switch built into the housing, so there is no separate switch to source or install, and it operates on a 12VDC electrical system, matching standard marine wiring.
It ships with an 18.4 watt DC double contact bayonet bulb already in place, giving a bright, functional light source out of the box. For boaters who want to move to LED, the fixture can be converted using a double contact bayonet base G4 adapter (sold separately, part number 442042-1), which lets a BA15D-style socket accept a G4 LED bulb. The dome light surface mounts using three RH fasteners, which are not included, so plan to have your own on hand for installation.
This is a general-purpose cabin light rather than a fitment-specific replacement part, so it works in any boat, cabin, or enclosed space where a 4 inch surface-mount dome light with a stainless steel housing is wanted.
Specifications
- Brand: Sea-Dog
- Manufacturer Part Number: 400190-1
- Product Type: Dome Light
- Material: 304 Stainless Steel (stamped)
- Lens Diameter (A): 4 inches
- Dimension B: 5-1/2 inches
- Dimension C: 2 inches
- Voltage: 12 VDC
- Fastener Type: #4 RH (fasteners not included)
- Bulb Included: 18.4 watt DC double contact bayonet bulb
- Switch: Prewired on/off toggle switch
- LED Conversion: Compatible with double contact bayonet base G4 adapter, part number 442042-1 (sold separately)
- Weight: 0.624 pounds
- Standard Pack: 1 each / 5 each
Frequently Asked Questions
What size is the lens on this dome light? The Sea-Dog 400190-1 has a 4 inch lens, which is the smaller of the two dome light sizes Sea-Dog offers.
What material is the 400190-1 dome light made of? It is stamped from 304 stainless steel, which resists corrosion from salt air and moisture in marine environments.
Does the 400190-1 dome light come with a switch? Yes, the 400190-1 is prewired with a built-in on/off toggle switch, so no separate switch needs to be added.
What voltage does this dome light run on? The Sea-Dog 400190-1 operates on a 12VDC electrical system, standard for most boats.
What bulb comes with the 400190-1? An 18.4 watt DC double contact bayonet bulb is included with the 400190-1 dome light.
Can this dome light be converted to LED? Yes, the 400190-1 can be converted to LED using a double contact bayonet base G4 adapter, part number 442042-1, sold separately, which allows a G4 LED bulb to be used in the BA15D-style socket.
Are mounting fasteners included with the 400190-1? No, the 400190-1 surface mounts with three #4 RH fasteners, but these fasteners are not included and must be supplied separately.
How much does the 400190-1 dome light weigh? The Sea-Dog 400190-1 dome light weighs 0.624 pounds.
What are the dimensions of the 400190-1 dome light? The 400190-1 measures 4 inches (A) by 5-1/2 inches (B) by 2 inches (C).
Is a replacement lens available for the 400190-1? Sea-Dog offers a separate replacement lens sized for the 4 inch dome light line, sold under its own part number rather than as part of the 400190-1 kit.
How is the 400190-1 dome light mounted? It is a surface-mount fixture, attached with three RH fasteners (not included) directly to the mounting surface.
What is the standard pack quantity for the 400190-1? The 400190-1 is available in a standard pack of 1 each or 5 each.