4-Channel Underwater Light Relay Module

The SCM-PD4CH is a 4-position power distribution box that provides a convenient way to connect up to 4 Shadow-Caster™ underwater lights. Digital over-current protection for each output ensures the safe operation of multiple lights and provides an easy way to manage the relatively high current switching needs of multiple light installations.

The SCM-PD4CH is housed in a compact waterproof box that is ideal for mounting in the bilge and wet locations.

Features:

Compact remote power control box
Green/red LED indicates the status of each output channel
Individual digital over-current protection for each channel
Compatible with Shadow-Caster™ single and multi-color lights
Recommended when installing two or more underwater lights
Can be used with a helm-mounted switch or with no switch when using a compatible Shadow-Caster™ controller
Blue Shadow-Caster™ backlight indicates the state
3-Year Warranty

Specifications:

Compatible with 12 or 24V systems
Up to 10 amps per channel
5/16-18” power lugs
IP67 wash down rated enclosure

What’s Included?

4 position power control box
Mounting hardware 4 #8 PH SS x.5”

⚓ Smooth Sailing Shipping

Enjoy FREE standard shipping on most orders over $250 within the continental U.S. (excl. heavy/oversized/hazardous items).

We ship via UPS, FedEx, and USPS . Orders are processed in 1–2 business days with typical delivery in 1–5 business days .

🧭 Track The Voyage

You’ll receive tracking info by email once your order ships. If your package is marked “delivered” but not received, please wait 48 hours then reach out to our team.

🛟 Hassle-Free Returns & Exchanges

Returns accepted within 30 days of delivery. Items must be unused and in original packaging.

Mistaken or damaged cargo? We’ll handle return shipping.
Changed your course? Return shipping is on you.
Report defects or damage within 7 days for a free exchange.

💰 Anchor Your Refund

Refunds go back to your original payment method within 5–7 business days after inspection.

📨 Contact the Crew

Questions about your order? Drop anchor at sales@marineelec.com .