Lighting Tech Glossary

Conformal Coating

A thin material that conforms to the contours of the PCB to protect the electronic components from harsh environments and impact.


Dual color interleaved lighthead.


Dual color interleaved lighthead with independent control of each color.


Two level technology.


Lightheads are fully enclosed for moisture and vibration resistance.


A coating that counteracts the effects of environmental and chemical damages to lenses and domes.


Whelen's patented use of Generation 3.5 diodes and unique reflector optics to produce highly intense light that has superior wide-angle visibility and rivals strobe in performance.

Low Current

Requires less than ¼ amp to operate, allowing for simple operation of each lightbar function.

Proclera® Silicone Optics

Whelen's innovative and efficient solution to distorted optical shape and fringe lighting. Features 100% internal silicone optic technology, an increased ability to harness LED output and better direct and focus light, and a full-fill square TIR optic to increase optic efficiency compared to a conventional circular TIR.


Solid-state "rotating" technology, simulating the appearance of a rotating beacon without any moving parts or motors for long-life reliability.


Utilizes an external wire to allow the user to cycle through the entire range of flash patterns, allowing for full customization.


Features an easy-to-use interface and utilizes a Bluetooth connection. Download the Scan-Lock+ app to browse, test, and assign Whelen flash patterns right from your phone.


Whelen's distinctive use of self-contained electronics to power and flash a particular LED product. These products require no external flasher, ballast, or power supply to operate.


Single color lighthead.


Two color lighthead where each color fills half of the reflector.


Whelen's innovative LED technology.


Provides the ability to connect multiple Whelen devices to flash together or in alternating patterns. Products with this capability allow the user to create coordinating flashing schemes.


Whelen's optimized use of Generation 3.5 diodes and unique optics to product highly intense light that is somewhat directional in nature.


Three color interleaved lighthead with independent control of each color.


Lightbar designer that delivers the ability to design custom Whelen lightbars with every available option. Adding R65 compliant options is simple, and a bill of materials will be generated to make ordering fast and easy.


Whelen's proprietary CAN-based communication system.