Product Description
PJ2-4B-TSW-LS21 Pico Wireless Control from Lutron is a compact 4-button, 2-group remote that allows intuitive, wireless control of both lighting loads and motorized shades using Lutron Clear Connect RF technology. Designed for flexible mounting and long battery life, it is ideal for adding convenient multi-zone control without running new wires.
Product Summary
| Brand | Lutron |
| Model | PJ2-4B-TSW-LS21 Pico 4-Button Wireless Remote, 2-Group Lights/Shades |
| Control Type | Handheld or wall/table-mounted wireless remote for lights and shades (2 groups) |
| Wireless Protocol | Lutron Clear Connect RF, centered around 434 MHz (431–437 MHz band) |
| Power | Battery-powered (CR2032 coin cell, included) |
| Finish / Color | TSW – Satin White (textured) |
| Typical Applications | Scene and zone control of Lutron lighting loads and shades in residential, hospitality, and commercial spaces |
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Benefits
- Wireless control without new wiring – add convenient multi-location control of lights and shades anywhere in the space without opening walls or pulling control wire.
- Two-group operation – dedicated buttons for lights and shades provide clear, intuitive control for end users and reduce training time.
- Flexible mounting and styling – use as a handheld remote, wall-mounted keypad, table-top control, or car-visor control to match the application.
- Long-life battery design – ultra-low power electronics deliver a typical battery life of up to ten years, minimizing maintenance calls.
Key Features
- 4-button, 2-group layout with separate ON/OFF for lights and OPEN/CLOSE for shades (LS21 configuration).
- Compatible with major Lutron systems including Caséta Wireless, RA2 Select, RadioRA 2, HomeWorks QS, Quantum, Vive, myRoom, and Sivoia QS wireless shade systems (when used with appropriate gateways and sensor modules).
- Lutron Clear Connect RF technology ensures reliable communication with high immunity to interference in the 431–437 MHz band.
- Compact form factor with a slim profile for comfortable handheld use or low-profile wall mounting.
- Multiple mounting accessories available, including adhesive backing, screw-mount kit, wallbox adapter, surface mount for metal surfaces, car visor clip, and single/double/triple pedestals.
- LED feedback indicator flashes to confirm button presses and assist during programming.
Specifications
Technical Specifications
| Manufacturer | Lutron Electronics |
| Series | Pico Wireless Remote Controls |
| Model Number | PJ2-4B-TSW-LS21 (4-button, lights/shades 2-group) |
| Device Type | Battery-powered wireless remote for lighting and shade control |
| Wireless Technology | Lutron Clear Connect RF |
| Operating Frequency | Approximately 434 MHz within the 431–437 MHz band |
| System Compatibility | Energi Savr Node (with QS sensor module), Vive, GRAFIK Eye QS, HomeWorks QS, RadioRA 2, RA2 Select, Serena RF shades, Sivoia QS wireless, Caséta Wireless, Quantum (with QS sensor module), myRoom prime and plus (where supported for LS21 configuration). |
| Control Groups | Two groups – one for lighting loads and one for shades (ON/OFF and OPEN/CLOSE) |
| User Interface | Four mechanical buttons with engraved icons and indicator LED |
Physical Specifications
| Dimensions (H × W × D) | Approximately 2.6 in × 1.28 in × 0.34 in (66 mm × 33 mm × 9 mm) |
| Housing Material | Molded plastic suitable for indoor use |
| Finish / Color Code | TSW – Satin White (textured, Pico Satin Colors finish family) |
| Mounting Options | Handheld use; adhesive wall mounting (included); screw-mount kit (PICO-SM-KIT, sold separately); wallbox adapter (PICO-WBX-ADAPT, sold separately); metal-surface adapter (PICO-MOUNT-1-XX-CPN6774, sold separately); car visor clip (PICO-CARVISOR-CL, sold separately); single/double/triple table-top pedestals (L-PEDX-XX series, sold separately). |
| Environment | Indoor only; ambient temperature from 32 °F to 140 °F (0 °C to 60 °C); up to 90 % non-condensing relative humidity |
Performance Specifications
| Power Supply | One CR2032 lithium coin-cell battery (approximately 3 V DC) |
| Typical Battery Life | Up to ten years (assuming average of ten button presses per day and typical ambient temperatures) |
| Wireless Range | Up to 30 ft (approximately 9 m) through typical interior walls; up to 60 ft (approximately 18 m) line-of-sight |
| Indicator | Front LED flashes on button presses and during programming |
Compliance & Safety
| Quality Standards | Manufactured under Lutron Quality Systems registered to ISO 9001 |
| Regulatory Approvals | FCC (USA), IC (Canada), COFETEL (Mexico), SUTEL (Costa Rica), Anatel (Brazil) |
| Warranty | Limited warranty from Lutron (see manufacturer documentation for terms and conditions) |
Application Examples
- Wall-mounted keypad in living rooms or great rooms to control a primary lighting load and a grouped set of motorized shades.
- Bedside controller for master suites, providing quick ON/OFF for lights and OPEN/CLOSE for blackout and sheer shades.
- Conference room or meeting space remote to manage overhead lights plus window shades from the table.
- Guestroom control in hospitality projects when integrated with myRoom prime or plus systems.
- Retrofit control in offices or classrooms where wired keypads are difficult to add, but Lutron wireless systems are present.
Installation Tips
- Always pair and program the Pico remote using the appropriate Lutron system (Caséta app, RadioRA 2 software, HomeWorks QS tools, Vive programming, or system-specific methods) before final mounting.
- For best RF performance, mount on non-metallic surfaces; when mounting to metal, use the PICO-MOUNT-1 adapter to maintain reliable range.
- Use the included adhesive backing for quick installation on smooth, clean wall surfaces; screw-mount kits are recommended for textured or uneven walls.
- When using a wallbox adapter, ensure the Pico sits flush within the adapter before installing a decorative wallplate.
- To replace the battery, carefully open the battery compartment as shown in the Lutron documentation and observe correct polarity when inserting the new CR2032 cell.
- Keep remotes away from sources of strong RF interference and do not install inside metal enclosures or behind metal panels.
Frequently Asked Questions
What is the Lutron PJ2-4B-TSW-LS21 Pico Wireless Control used for?
The PJ2-4B-TSW-LS21 is a four-button Pico remote designed to provide two groups of control: ON/OFF for compatible Lutron lighting loads and OPEN/CLOSE for compatible Lutron shades. It is typically used as a convenient, battery-powered keypad in spaces that already use Lutron wireless lighting or shading systems.
Which Lutron systems are compatible with this Pico LS21 model?
This remote can be integrated with many Lutron platforms, including Caséta Wireless (Smart Bridge or Smart Bridge Pro), RA2 Select, RadioRA 2, HomeWorks QS, Quantum systems (with a QS sensor module), Vive, myRoom, and Sivoia QS wireless shading solutions, as specified in the Lutron Pico control documentation for LS21 devices.
How far away can the PJ2-4B-TSW-LS21 be from the dimmers, switches, or shades it controls?
Under typical conditions the Pico remote can communicate with compatible devices up to about thirty feet through standard interior walls and up to about sixty feet with clear line-of-sight. Actual range may vary depending on construction materials and sources of RF interference in the space.
Does this Pico remote require any wiring or a neutral connection?
No wiring is required. The PJ2-4B-TSW-LS21 is completely battery-powered and communicates wirelessly using Lutron Clear Connect RF, so it can be mounted virtually anywhere within range of the associated Lutron devices or gateways.
How long does the battery last and what type of battery does it use?
The remote uses a CR2032 lithium coin-cell battery. Under typical usage (about ten button presses per day at normal indoor temperatures), the expected battery life is up to ten years, minimizing service visits and maintenance costs.
Can I mount this Pico remote on a wall like a standard keypad?
Yes. The remote includes adhesive for simple wall mounting, and optional accessories such as the PICO-SM-KIT and PICO-WBX-ADAPT allow screw mounting or installation over a standard wallbox with a decorative wallplate for a built-in look.
What is the difference between LS21, L21, and S21 Pico models?
All three are two-group Pico remotes, but the LS21 model combines lighting and shade control on a single keypad, with ON/OFF for lights and OPEN/CLOSE for shades. The L21 version is dedicated to two groups of lighting loads, while the S21 version is designed specifically for two groups of shades. Choosing LS21 is ideal when a single remote must manage both lights and shades.
Is the PJ2-4B-TSW-LS21 suitable for commercial projects?
Yes. The Pico platform is commonly used in commercial, hospitality, and office environments as part of Lutron Vive, Quantum, or myRoom systems. The LS21 remote is particularly useful in conference rooms, hotel guestrooms, and offices where both lighting and shades need simple, intuitive user control.
How do I replace or reprogram the functions on the buttons?
Basic button functions are predefined by the LS21 configuration, but in many systems (such as Caséta Wireless, RA2 Select, RadioRA 2, and HomeWorks QS) the Pico can be reassigned or reprogrammed using the corresponding Lutron app or configuration software. Consult the system programming guide for specific pairing and reassignment steps.
Can one PJ2-4B-TSW-LS21 control multiple devices or zones at once?
Yes. Within compatible systems, each group of buttons can be associated with multiple dimmers, switches, or shade groups. This allows single-button operation of entire scenes or grouped control of several loads, depending on how the integrator configures the system.
