Perko Double Contact Bayonet Bulb, 30W, Clear Type T-8, C-8 Filament

Overview

The Perko Double Contact Bayonet Bulb is a 30W clear Type T-8 replacement bulb for Perko figure 0374 marine lighting applications, offered in 12V, 24V, 32V, and 120V versions.

This incandescent bulb uses a C-8 filament with a 1-3/8 inch L.C.L. and is rated at 24 candela. It is a practical service part for keeping compatible navigation and fixture lighting operating as intended, especially when replacing a failed bulb rather than changing the whole light assembly.

Because the same bulb style is available in several voltages, the vessel’s lighting circuit voltage should be matched before installation. The bulb weighs 1 oz., which makes it easy to keep as a spare aboard for cruising, fishing, or dockside maintenance.

Key features

• Clear Type T-8 incandescent bulb for compatible Perko double-contact bayonet fixtures.
• 30W output with a 24 candela rating for marine lighting service.
• C-8 filament with 1-3/8 inch L.C.L. for the correct lamp geometry in matching fixtures.
• Available in 12V, 24V, 32V, and 120V versions to match different vessel electrical systems.
• Useful as an onboard spare for replacing a burned-out lamp without replacing the fixture.

Variants

This Perko bulb is offered in multiple voltage configurations so it can be matched to the circuit used on the vessel or fixture.

The bulb type, 30W wattage, clear Type T-8 form, C-8 filament, 1-3/8 inch L.C.L., 24 candela rating, and 1 oz. weight are consistent across the range. The voltage is the main difference between the listed variants.

• 0374004CLR: 120V. This version suits compatible 120V AC lighting circuits and should be used only where the fixture and supply voltage match.
• 0374001CLR: 12V. This version fits common 12V DC boat lighting systems used on many small and mid-size vessels.
• 0374002CLR: 24V. This version matches compatible 24V DC systems often found on larger boats or vessels with higher-voltage service circuits.
• 0374003CLR: 32V. This version is for compatible 32V systems, which are still found on some older or specialized marine installations.

Compatibility and fit

Confirm the fixture accepts a clear Type T-8 double-contact bayonet bulb and check the voltage stamped on the old bulb, fixture, or circuit before ordering. Using the wrong voltage can result in poor light output, premature failure, or damage to the lamp.

Use on board

This bulb is a good match for boat owners and service technicians maintaining existing Perko lighting rather than converting the fixture to a different lamp style. It is especially useful to keep aboard when a vessel relies on compatible incandescent navigation or fixture lighting during evening runs, overnight anchoring, or routine maintenance.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Orders of $100 or more qualify for free shipping when eligible. For orders under $100, shipping costs are calculated at checkout based on destination, package weight, and selected service. International shipping is available for eligible products, and certain items may require additional handling, warehouse transfers, or may ship directly from the manufacturer, which can affect processing time.

Deliveries are handled by preferred carriers such as USPS, UPS, FedEx, DHL, and others depending on your location and selected service. Estimated delivery times are displayed at checkout and may vary due to customs processing, carrier delays, weather, postal disruptions, or other circumstances beyond our control. Once your order ships, you'll receive a confirmation email with tracking information. Tracking may take up to 24 hours to update on the carrier's website and is also available through your account when applicable.

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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