What is ShiftLume?

ShiftLume is a compact, rechargeable dual-light keychain designed for everyday illumination and gifting.

It features a focused front beam and a wider side light with both warm and white lighting. Its playful shape is an inside joke many nurses will recognize, while its lighting functions make it useful for everyday tasks.

Is ShiftLume a medical penlight?

No. ShiftLume is a novelty rechargeable keychain light intended for general illumination and gifting.

It is not a medical device and is not intended for pupil examination, medical diagnosis, treatment, or any other clinical diagnostic use.

What lighting modes does it have?

ShiftLume includes two main lighting modes:

Focused front beam

A forward-facing light with four brightness settings, suitable for checking inside bags, finding keys, lighting small spaces, and seeing what is directly ahead.

Warm and white side light

A wider three-LED area light with:

• 
  3 warm-light settings
  
• 
  3 white-light settings
  

Warm light provides a softer glow, while white light offers clearer general illumination.

How do I control the light?

ShiftLume uses one button:

• 
  Single click while off: Turn on the last-used lighting mode
  
• 
  Double-click while off: Turn on the alternate lighting mode
  
• 
  Single click while on: Cycle through brightness or color settings
  
• 
  Double-click while on: Switch between the front beam and side light
  
• 
  Press and hold, then release: Turn the light off

How do I charge ShiftLume?

Remove the charging-port cover and connect the included USB-A to USB-C charging cable.

The indicator light shows:

• 
  Red: Charging
  
• 
  Green: Fully charged
  

Replace the charging-port cover after charging.

How long does the battery last?

Runtime depends on the selected lighting mode and brightness level.

Typical runtimes include:

• 
  Side light at the lowest brightness: up to 8 hours
  
• 
  Front beam at low brightness: approximately 4.5 hours
  
• 
  Front beam at medium brightness: approximately 2–3 hours
  
• 
  Front beam at the highest continuous brightness: approximately 1 hour
  

The maximum boost setting is intended for short periods and provides a shorter runtime.

Is ShiftLume waterproof?

No. ShiftLume is not waterproof.

Keep it away from water, sinks, showers, liquids, and heavy moisture. Make sure the charging-port cover is installed when the charging port is not in use.

Are visible 3D-printing lines normal?

Yes. Each PLA shell is individually made using FDM 3D printing.

Subtle layer lines, seam marks, and minor surface variations are natural characteristics of the manufacturing process. These details may vary slightly between products and are not generally considered defects.

What comes with my order?

Each package includes:

• 
  1 ShiftLume rechargeable dual-light keychain
  
• 
  1 USB-A to USB-C charging cable
  
• 
  1 charging-port cover installed
  
• 
  3 spare charging-port covers
  
• 
  1 replaceable carry loop installed
  
• 
  1 quick-start guide
  

How long does production take?

ShiftLume is made to order.

Each light is individually printed, assembled, charged, inspected, and tested. Please allow up to 14 business days for production and shipment preparation.

Orders may ship sooner, but we recommend planning around the full processing period.

Does the 14-business-day period include delivery?

No.

The 14-business-day period refers to production and processing before the order ships. Delivery time begins after the carrier receives the package and varies depending on the destination and shipping service.

Tracking information will be sent by email after shipment.

What should I do if my item arrives damaged or does not work?

Please contact us within 7 days of delivery and provide:

• 
  Your order number
  
• 
  A short description of the issue
  
• 
  Clear photographs or a short video showing the problem
  
• 
  A photograph of the shipping package if it arrived damaged
  

Before contacting us about a light that does not turn on, please charge it fully and test both lighting modes.

Email: support@shiftlume.com

Response time: Within 1–2 business days