• Shop Online
Get a Quote

LED Obstruction Lighting Controller with Transfer Relay & Alarm | FL-81051

This product is available in our webstore – Shop Now

Compliance and Applications

• FAA AC 150/5345-43G

Our FL-81051 LED obstruction lighting controllers have been designed to reliably sense the proper operation of the latest low-power LED obstruction lights, with an array of dry alarm contacts to report on all aspects of system health.

Ordering Codes

Model # of L-810 Light Circuits L-810 Light Style Input Voltage Option
FL-81051 1: One Circuit: Up to 6 Single or 3 Double L-810 Lights
2: Two Circuits: Up to 12 Single or 6 Double L-810 Lights
3: Three Circuits: Up to 18 Single or 9 Double L-810 Lights
4: Four Circuits: Up to 24 Single or 12 Double L-810 Lights
S: Single
D: Double
AC1: 120VAC
AC2: 240VAC
AC3: 277VAC[1]
F: Flasher
TR: Transfer Relay[2]
[1] Controller will convert 277VAC input to 120VAC output.
[2] For double head obstruction lights only.
[3] Maximum four circuits per controller. L-810 LED lights: Up to 6 single or 3 double lights per circuit.


• AC input – 120V AC, 240V AC, or 277V AC
• DC input – 24V DC only
• Sophisticated current sensing enables reliable monitoring of the latest low-power LED obstruction lights
• Factory configured for: up to 4 circuits of L-810 LED lights (single or double)
• L-810 LED lights: Up to 6 single or 3 double lights per circuit
• Transfer Relay mode available – energizes backup lighting in the event of a failure, up to 4 individual transfer relays
• Controller can be configured to operate L-810 sidelights in flashing or steady-burn mode
• Controller powers lights even if the photocell fails
• FAA photocell and bracket included
• User-friendly connectors
• Integrated surge protection
• Resistant to corrosion, shock and vibration
• Operates from -67° F to +131° F (-55° C to +55° C)
• 2 year warranty


• Input Power: 120V AC 50/60Hz, 240V AC 50/60Hz, 277V AC 60Hz, or 24V DC
• Enclosure Rating: NEMA 4x Polycarbonate (15.37″H x 13.28″W x 7.13″D)
• Controllers requiring 3-4 circuits and a flasher will be installed in a larger NEMA 4 Aluminum Enclosure (20″H x 16″W x 7.32″D)
• Surge Protection: MOV
• Alarm Type: Dry Contacts, Form “C”
• Warranty: 2 year limited warranty
• Compatibility: Controller will only work with L-810 LED obstruction lights that do not exceed the power consumption of 7VA per light fixture.

Interested? Get a Quote

Have a product question? Need a quote? Please fill out our online quote request form.

Get a Quote