Hella Marine H5W Miniature Halogen Bulb, 12V, 5W, BA9s

Overview

The Hella Marine 211738711 is a 12V miniature halogen replacement bulb in the H5W format.

It is used anywhere your boat light calls for an H5W miniature bulb and you want to keep the same halogen lamp type in the fixture. This is commonly seen in compact interior lights like map and reading positions, small courtesy lights, and instrument or switch lighting, but the final check is the marking on the old bulb and the socket it came out of.

Halogen bulbs run hot in operation. Let the fixture cool before swapping the lamp, avoid touching the glass with bare fingers, and make sure the lens and surrounding wiring are not pressed against the bulb.

Key features

• 12V miniature halogen replacement bulb (H5W format)
• Restores output and beam pattern for fixtures that specify an H5W lamp
• Simple swap when a bulb has darkened or failed, with no rewiring
• Useful spare to keep aboard for night runs and cabin lighting

Compatibility and fit

Match system voltage (12V) and the bulb type marking (H5W) to your existing lamp. If your fixture uses a different base style or a different wattage rating, stick with the bulb specified for that light to avoid heat issues and poor fit.

Installation and handling

Switch power off at the panel and let the fixture cool. Remove the lens or access cover, then remove the old bulb using the same motion required by the socket style. Install the new bulb fully seated, refit the lens, and test the light before closing everything up.

Use on board

This bulb is a good match for owners maintaining older halogen-based interior lighting, as well as charter and fishing boats that keep spare lamps on hand for quick fixes. It also makes sense for any cabin or helm light where you want a direct replacement without changing the fixture.

Shipping
We ship worldwide from the United States. Rates are calculated at checkout based on destination and package weight. Some items include free shipping, which will show automatically. Not every product is eligible for international shipping; checkout will confirm eligibility. We do not ship to PO Boxes except through USPS, and not all packages qualify.

Processing and dispatch
Most orders are verified, packed, and handed to the carrier within 1 to 2 business days. Some products may need extra handling time or ship directly from the manufacturer. For certain international orders, inventory transfers between warehouses may add time. If any delay is expected, we will let you know the dispatch date.

Delivery and tracking
Deliveries are handled by trusted carriers such as USPS, UPS, FedEx, and DHL. Estimated arrival times appear at checkout and depend on your location and the service you choose. These are estimates and can be affected by customs or carrier disruptions. A shipping confirmation with a tracking link is emailed when your order ships, and tracking may take up to 24 hours to update. You can also view tracking in your account.

Duties, taxes, and support
International customers are responsible for any customs duties, taxes, and fees charged by the destination country. If these charges are refused and a shipment returns to us, the carrier’s return cost and any re-entry customs fees will be deducted from the refund. If your order is late or you need help, contact cs@qualityboatparts.com and we will assist you.

Quality Boat Parts is a reseller. Many items include a manufacturer’s warranty, and all warranty service is handled directly by the manufacturer. We do not manage or administer warranty claims on behalf of customers.

Warranty terms, coverage, and duration are set by each manufacturer. Issues involving defects, repairs, or replacements must be addressed with the manufacturer’s support team. When available, the warranty period is listed on the product page. If it is not shown, contact us or the manufacturer for details before purchasing.

To start a claim, the customer must contact the manufacturer and follow their process. Keep your proof of purchase and original packaging, and register the product if the manufacturer requires it, as these are often needed for warranty service.

We are happy to help you find the right contact or documentation, but we cannot decide outcomes or intervene in claim resolutions. For guidance, email cs@qualityboatparts.com.