The 420 Rocox® 4-Point Solid State Flasher (Model 4203) is a high-capacity, professional-grade 4-circuit chaser flasher designed for advanced neon and incandescent sign animation. Built for demanding commercial signage applications, this unit offers increased amperage, adjustable flash speed, and reliable solid-state performance.

Operating on 120V AC, the 420 Rocox flasher is rated at 20 amps total across four circuits (5.33 amps per circuit) and features a 3 ON / 1 OFF sequence (75% ON) for bold, highly visible lighting effects. The adjustable speed range of 60 to 600 flashes per minute allows installers to fine-tune animation timing for maximum visual impact. Its compact enclosure supports easy installation in sign cabinets and electrical housings.

Key Features & Benefits

• Solid-state construction for long-lasting, maintenance-free operation
• 4-point / 4-circuit chaser design for advanced animated lighting
• 3 ON / 1 OFF action (75% ON) for strong visual emphasis
• Adjustable flash speed from 60 to 600 flashes per minute
• Rated for neon or incandescent lighting loads
• High-capacity 20 amp total rating (5.33 amps per circuit)
• Quiet operation with no moving parts
• Compact housing for efficient installation in sign cabinets
• Trusted Rocox performance for professional signage applications

Technical Specifications

• Product Type: Electrical flasher
• Flasher Type: 4-point / 4-circuit chaser
• Model: 4203
• Action: 3 ON / 1 OFF (75% ON)
• Speed Range: Adjustable, 60–600 flashes per minute
• Load Type: Neon or incandescent
• Input Voltage: 120V AC
• Current Rating: 20 amps total (5.33 amps per circuit)
• Technology: Solid state
• Dimensions: 4.5" x 2.75" x 2.5"
• Manufacturer: Rocox Inc.
• Item Number: 420
• Manufacturer Part Number: 4203

Common Applications

• High-impact neon sign animation
• Incandescent sign lighting effects
• Multi-section channel letter chasing
• Commercial and retail signage
• Electrical sign cabinet systems

The 420 Rocox® 4-Point Solid State Flasher delivers powerful output, adjustable animation control, and proven reliability—making it an excellent choice for professional signage projects requiring higher amperage and dynamic visual effects.