Whelen MCRNSC Warning Light
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Whelen MCRNSC
The Whelen Micron™ is a compact, high-performance LED lighthead designed for versatility across a wide range of vehicle applications. Micron’s TIR6™ LED optic technology ensures exceptional visibility while consuming minimal power, making it ideal for any emergency or commercial fleet. With a rugged, weather-resistant design, it withstands tough environments and extreme weather conditions, delivering consistent performance whenever it’s needed. Whether installed on law enforcement, fire, EMS, or utility vehicles, Micron’s compact form makes it easy to integrate into tight spaces without sacrificing effectiveness. Available with multiple mounting options and a variety of flash patterns, Micron adapts to every vehicle’s unique needs, providing efficient, low-profile warning that keeps first responders and workers safe on the road.
Features & Benefits
- Ultra-compact design: at just over 4 inch wide and less than 1 inch tall for versatile lighting applications
- Directional warning: designed to provide focused, high-performance light output
- Adaptable installation: surface mounts with 2 screws and includes black or chrome flange for seamless integration
- Smartled®: self-contained electronics power and flash leds without the need for external flashers, ballasts, or power supplies
- Sync: connect multiple whelen devices for synchronized or alternating flash patterns
- Scan-lock™: advanced flash pattern control
- Hard-coated lenses: resist environmental damage from sand, sun, salt, and road chemicals
- Conformal coated electronics: environmental, moisture, and vibration resistance
- Limited 10 year warranty
Specifications
| Color | Black/Chrome/Sand |
| Weight | 0.4 lb |
| Dimensions | 4.1 x 1.4 x 0.4 in |
| Brand | Whelen |
| Manufacturer Part Number | MCRNSC |
Frequently Asked Questions
What color is this auto part?
This is the Black/Chrome/Sand variant from Whelen.
What stands out about this auto part?
Key details include scan-lock™: advanced flash pattern control. Review the full feature list and specifications on this page for complete details.
How much does this product weigh?
This item weighs approximately 0.40 lb.
Shipping & Returns
Shipping & Returns
Shipping:
Most qualifying in-stock orders are processed within one business day. In the contiguous 48 states, eligible in-stock orders placed before 12:00 PM (noon) in the customer's local time zone typically ship the same business day. Orders shipping to Alaska or Hawaii use a 12:00 PM Pacific Time cutoff (California time). These cutoffs apply only to eligible in-stock orders and are not guaranteed shipping or delivery times. Same-day shipping refers to processing and carrier handoff, not delivery. Weekends and holidays are excluded.
Payment verification, address verification, fraud review, and inventory availability may take longer. Supplier-direct fulfillment, freight shipping, and special handling may also take longer.
Returns:
Eligible products may be returned within 60 days of delivery, subject to our Return Policy. Return authorization is required. Certain products are final sale or subject to manufacturer warranty procedures, shipping charges, and applicable restocking fees.
Please inspect your order promptly upon delivery. Shipping damage, incorrect items, missing components, or quantity shortages must be reported within 3 business days after delivery. Retain the product, original packaging, shipping labels, and photographs while your claim is reviewed.

