Pick to Light

Pick-to-Light System & Hardware for Warehouse Picking

Wireless pick-to-light systems — also called pick-by-light or light-directed picking — that eliminate search time, reduce errors, and confirm every action in real time.

How Pick-to-Light Works

Light Up. Pick. Confirm. Done.

A simple, guided workflow that turns every pick into a confirmed, error-free action — whether used standalone or alongside barcode scanners.

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Task Arrives

Your WMS sends a pick task through the REST API to the Voodoo server.

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Device Lights Up

The display shows SKU, quantity, and instructions. The LED glows the assigned color.

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Worker Picks

The operator goes to the lit location, reads the display, and picks the item.

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Button Confirms

A button press confirms the pick and sends confirmation back to your system.

When to Use Pick to Light

●High-volume zone or batch picking with dozens to thousands of SKUs
●Fast onboarding — new hires need to pick accurately on day one
●Error-sensitive operations where mis-picks drive returns and chargebacks
●Stable pick faces where devices stay at fixed shelf or rack locations
●Multi-zone warehouses needing guided picks without conveyors

Why Wireless Pick-by-Light

●No conduit, no wiring, no electricians — deploy devices in minutes
●Battery-powered displays last years on standard AAA cells
●Reconfigure pick faces and zones without infrastructure changes
●Scale from 10 devices to 1,000+ with no architectural changes
●Wireless outperforms wired on cost, flexibility, and deployment speed

What It Integrates With

●Any WMS via standard REST API — no proprietary middleware
●SAP, Oracle, Manhattan, Blue Yonder, Körber, HighJump, and more
●ERP and MES systems for manufacturing pick-by-light workflows
●barcode scanners for combined scan-and-light execution
●Cloud dashboard for centralized monitoring and battery management

System Architecture

What's in a Pick-to-Light System

Three layers work together: wireless displays on the floor, a router for coverage, and a server that connects to your software — running in the cloud or on-site.

IoT Cloud Display Devices

●Battery-powered displays guide workers at shelves, carts, bins, workstations, and put-wall locations
●Show SKU, quantity, color, arrow direction, zone, order, tote, or operator instructions
●Mount in seconds with built-in magnets — no shelf wiring, and in most cases no mounting hardware

Turbo II Router

●Connects every Voodoo device back to the server over WiFi or POE
●Up to ~300 devices per router with 75–100 ft of range
●Add routers to blanket a facility of any size with reliable coverage

Voodoo Server — Cloud or On-site

●Runs in the cloud or on-site on your LAN — whichever your IT team prefers
●Receives pick tasks from your WMS, ERP, or MES, or a custom application
●Every button press or barcode scan flows back to the host system in real time

Many operations run the same wireless displays on mobile carts to build pick-to-light carts, pair them with RF scanners for closed-loop confirmation, or model device counts and rollout phases with our pick-to-light system cost guide.

Related Workflows

Pick-to-light is one workflow in the Voodoo platform. The same wireless displays also power put-to-light, put walls, pick-to-cart, pack-to-light, and kitting & sequencing. Browse the full set on Use Cases.

Hardware

Purpose-Built for the Warehouse Floor

Voodoo's hardware is designed for demanding warehouse environments. Battery-powered display devices mount anywhere with no wiring, while the Turbo II Router provides reliable wireless coverage across your facility.