Hella Marine H3 Search Light Bulb, 12V, 100W, PK22s Base

Overview

The Hella Marine 178555924 is an H3 replacement bulb for 12V lighting with a 100W rating and a PK22s base.

It is used in halogen deck floodlights, searchlights, and other fixtures that specify an H3 bulb. Because 100W is a heavy load on a 12V circuit, confirm the light housing is rated for the wattage and that your wiring and switching can handle about 8.3A per lamp.

This is a straightforward service part for keeping an existing halogen light working without changing the fixture.

Key features

• H3 halogen replacement bulb for fixtures that take an H3 lamp
• 12V, 100W rating for applications that call for a high-wattage H3 bulb
• PK22s base to match standard H3 sockets
• Draws about 8.3A at 12V, which helps when checking fuse and switch capacity
• Useful when you want a like-for-like replacement and do not want to retrofit the light

Compatibility and fit

Match the bulb type and base to your existing lamp before ordering. The simplest check is the marking on the old bulb (H3) and the base style (PK22s). If your fixture uses a retaining clip or a specific lead connection inside the housing, make sure it lines up the same way before closing the lens.

This bulb is for 12V DC systems only. It should not be used on 24V circuits.

Installation and setup

Shut off power at the breaker or pull the fuse, then let the light cool fully before opening it. Halogen bulbs run hot, and the reflector and lens area can stay warm for a while after use.

Avoid touching the glass with bare fingers. If you do, wipe it clean before powering up so skin oils do not create hot spots on the quartz.

After reassembly, check that the gasket and lens are seated correctly so spray and washdowns stay outside the housing.

Electrical and system integration

At 100W, voltage drop becomes noticeable on long cable runs. Keep connections tight and corrosion-free, and size the circuit for the current draw of the lamp or lamps you are running. A quick functional check after install is steady brightness and no excessive heat at terminals or connectors.

Use on board

This bulb is a good match for boats that already have an H3 halogen deck flood or spotlight installed and want a direct service replacement. It is commonly used for dockside lighting, cockpit work, deck loading, and short-duration spotlighting where the existing fixture is already set up for an H3 lamp.

Maintenance and care

Halogen bulbs do not like moisture inside the housing. If you see condensation, address the seal or venting so the bulb is not stressed by repeated heat and cool cycles. Keeping the lens clean also helps the fixture run cooler for the same usable light.

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We ship throughout the United States and to most international destinations for products eligible for international shipping. International orders may be subject to customs duties, taxes, brokerage charges, or other import fees, which are the customer's responsibility and are not included in the product or shipping price. PO Boxes are accepted only when shipping through USPS, and not all packages qualify for this option. If your order does not arrive within the estimated delivery window, please contact us at info@apollolighting.com or +1 (954) 375-0100 so we can assist with locating your package.

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Returns may be requested within 30 days of receiving your order. Items must be unused, uninstalled, unaltered, and returned in their original packaging with all tags, packing materials, blank warranty cards, manuals, instructions, accessories, and included items. Certain products, including installed or used electronics, electrical components, lighting, consumables, custom or special-order items, cut-to-length products, safety equipment, and merchandise exposed to water or marine conditions, may not be eligible for return.

To request a return, sign in to your account and select the applicable order and items, and submit your request for review. Eligible unfulfilled items may also be submitted for cancellation within 1 hour of placing the order. Returns or cancellations are not considered approved until you receive confirmation from Apollo Lighting. Please do not ship or drop off merchandise before receiving return approval and instructions.

Customers are responsible for arranging and paying for return shipping unless the return is due to an error by Apollo Lighting or the item is verified as defective, damaged, or incorrect. Missing, damaged, defective, or incorrect items must be reported within 2 business days of delivery, and photos or other documentation may be required for review. If the issue is verified, Apollo Lighting may provide or reimburse return shipping and issue a replacement or refund depending on the circumstances. International customers are responsible for return shipping, duties, taxes, customs charges, brokerage fees, and other costs associated with an international return.

After your return is received and inspected, approved refunds are issued to the original payment method and may take 5-7 business days to appear after processing. Original shipping and handling charges are nonrefundable, and the value of any included free items that are not returned may be deducted from the refund. Apollo Lighting does not charge a standard restocking fee on eligible returns. Returns that are incomplete, damaged, installed, used, altered, improperly packaged, or otherwise do not meet the eligibility requirements may be refused. We recommend using a trackable and appropriately insured shipping service for all customer-arranged returns.

For assistance, contact info@apollolighting.com or call +1 (954) 375-0100.

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Many products sold by Apollo Lighting include a manufacturer's warranty covering defects in materials or workmanship. Warranty terms vary by brand, product category, and model, so eligibility, coverage duration, exclusions, and available remedies are determined by the applicable manufacturer. We recommend reviewing the warranty information provided with your product before installation or use, especially for marine electronics, navigation equipment, lighting, electrical systems, pumps, safety equipment, and other specialized marine products.

If you need warranty service, the claim must follow the process established by the manufacturer, authorized service center, or designated warranty provider. You may be asked for proof of purchase, a serial number, product registration, photos, maintenance or installation records, or other documentation. Apollo Lighting does not determine or modify a manufacturer's warranty coverage or final claim decision, but we are happy to help provide purchase information and direct you to the appropriate manufacturer or warranty resource.

Keep your receipt, product documentation, serial number information, and original packaging when practical. Damage caused by normal wear, misuse, improper installation, insufficient maintenance, corrosion, impact, unauthorized modifications, electrical issues, or operation outside the manufacturer's specifications may not be covered. Warranty claims are separate from standard returns, so a product that has been installed, used, or exposed to marine conditions may no longer qualify for return while still remaining eligible for evaluation under the manufacturer's applicable warranty.

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