LED artist Erwin Redl's latest public artwork "Whiteout" consists of almost 1000 weatherproof LED balls suspended in Madison Square Park. The piece provides a stunning choreographed light show that plays elegantly throughout the array.
The design challenge was to develop a strategy focused on simplifying the wiring to the absolute minimum, while providing the most even, smooth lighting effect.
Each ball contains it's own dedicated switch-mode constant current driver which ensures that each LED is driven by a precise current level, regardless of wiring voltage drops. The driver also provides efficient power conversion, allowing the use of thin wires to distribute the power. Dimming is accomplished via a 3rd wire, which controls the fixture brightness level.
Each ball is totally encased in resin, making it totally waterproof.
Casting was done in a 2 step process using opaque and clear resins to create a clean looking package.