ULANZI SLO3 Spark Lite Camera Flash: Flash or Glow | 90° Adjustable | Focus Assist | 1‑Hour Charge | 500 Flashes

Compact & Lightweight | Constant Fill Light Mode | Type‑C Charging | For Smartphones, Action Cameras, Compact Cameras | Available in Black & White

Key Features

• Flash or Glow – The Choice Is Yours: Switch between powerful flash mode for freezing action or constant fill light mode for video and continuous shooting. One device, two versatile lighting options.

• 90° Adjustable Flash Head: Tilt the flash head up to 90° to switch between direct flash and bounce flash. Bounce light off ceilings or walls for softer, more natural illumination – perfect for portraits and indoor photography.

• Fast Focus in the Dark – Focus Assist Light: In flash mode, the constant light doubles as a focus assist beam, enabling quick and precise autofocus even in extremely low light conditions. Never miss a shot due to hunting focus.

• Adjustable Flash Brightness: Multiple power levels let you dial in the exact amount of light needed. From subtle fill flash to full power blast – complete creative control.

• Faster Recycling for Continuous Shots: Optimized capacitor and circuitry provide faster recycling times between flashes. Capture seamless sequences – no more waiting for the flash to recharge.

• 1‑Hour Charge, 500 Flashes: Fully charges in approximately 1 hour via USB Type‑C. Delivers at least 500 full‑power flashes on a single charge. Enough for a full day of shooting.

• Ultra‑Compact & Lightweight – Easy to Take Anywhere: Pocket‑sized design fits easily in your bag, pocket, or camera pouch. The perfect travel companion for photographers on the go.

• Simple Controls – One‑Button Operation:

  • Short press: Single flash (test flash)

  • Short press (mode button): Adjust flash power level

  • Long press: Switch between flash mode and constant light mode

  • Flashing not available during charging

• Type‑C Charging Port: Modern reversible USB‑C port for convenient charging with the same cable you use for your phone, tablet, or laptop.

• Available in Black & White: Choose the classic black or clean white finish to match your camera or personal style.

• Wide Compatibility: Works with smartphones (via hot shoe adapter or trigger), action cameras, compact cameras, and any camera with a standard hot shoe or sync port (adapter may be required for some devices).

• CE, ROHS, FCC Certified: Meets international safety and quality standards.

• 100% Full Inspection: Every unit undergoes rigorous quality testing before shipping.

• Official Warranty: Comprehensive warranty coverage for peace of mind.

Product Details

Flash or Glow – Two Modes, One Device

The SLO3 Spark Lite gives you the flexibility of both a traditional camera flash and a continuous LED light:

• Flash Mode: Burst of high‑intensity light perfect for freezing motion, shooting in dark environments, or adding catchlights to eyes. Ideal for street photography, events, and portraits.

• Constant Light (Glow) Mode: Continuous fill light for video recording, macro photography, or any situation where you need to see the lighting in real time. Perfect for vlogging, product videos, and close‑up work.

Switch between modes with a long press of the mode button.

90° Adjustable Flash Head – Direct or Bounce

The flash head tilts up to 90°, giving you two distinct lighting styles:

• Direct flash (0°): Points straight at your subject – maximum power, hard shadows, dramatic contrast.

• Bounce flash (45°–90°): Points toward the ceiling or wall, bouncing light onto your subject from a larger, softer source. Produces flattering, natural‑looking light with softer shadows – ideal for indoor portraits and event photography.

The adjustable angle also helps you position the flash exactly where you need it for macro or close‑up work.

Fast Focus in the Dark – Focus Assist Light

One of the most frustrating things about shooting in low light is your camera’s autofocus hunting back and forth. The SLO3 solves this with its built‑in focus assist light:

• In flash mode, the constant LED stays on briefly to illuminate your subject

• Your camera locks focus quickly and accurately

• The flash then fires to capture the image

No more missed shots due to poor focus in dim conditions. Works especially well with smartphones and compact cameras that struggle in low light.

Adjustable Flash Power – Creative Control

The SLO3 lets you adjust flash output across multiple power levels. Use:

• Lower power: Subtle fill flash, faster recycling, more flashes per charge

• Higher power (full 1/1): Maximum brightness for large groups, dark venues, or shooting through modifiers

Adjust power by short pressing the mode button. The setting is retained even after power cycling.

Faster Recycling – Capture the Moment, Not the Wait

Traditional smartphone flashes and low‑end external flashes can take several seconds to recycle after a full‑power burst. The SLO3’s advanced circuitry reduces recycling time significantly, allowing you to:

• Shoot rapid sequences (e.g., burst mode, action sports)

• Capture candid moments without missing the next shot

• Work more efficiently during events or fast‑paced shoots

1‑Hour Charge, 500 Flashes – All‑Day Power

The built‑in rechargeable battery charges fully in approximately 1 hour via the USB Type‑C port. At full power (1/1 setting), you’ll get at least 500 flashes – enough for a full day of shooting, a wedding reception, or a multi‑hour event.

• Battery type: Lithium‑ion (built‑in)

• Charging indicator: LED shows charging status

• Note: Flashing is not available while the unit is charging

Ultra‑Compact & Lightweight – Pocket‑Sized Power

The SLO3 is designed for photographers who value portability:

• Dimensions: Approximately 70×50×40mm (estimated based on product type)

• Weight: Approximately 80‑100g (light enough to carry anywhere)

Slip it into a pocket, bag, or even a smartphone grip case. It’s the perfect travel companion for:

• Street photography

• Travel and vacation shooting

• Everyday carry (EDC) kits

• Backup flash for professionals

Simple, Intuitive Controls

No complicated menus or confusing buttons. The SLO3 features:

LED indicators show current mode, power level, and charging status.

Type‑C Charging – Modern and Convenient

The USB Type‑C port means you can charge the SLO3 with the same cable you use for your smartphone, tablet, laptop, or camera. No proprietary chargers, no hunting for the right cable. Charge from any USB power source:

• Wall adapter

• Power bank

• Laptop USB port

• Car charger

Available in Black or White

Choose the color that best fits your gear:

• Black: Classic, professional, blends with most cameras

• White: Clean, modern, stands out – easy to find in a camera bag

Both versions offer identical performance.

Wide Compatibility

The SLO3 features a standard hot shoe mount (with center contact) compatible with:

• Smartphones: Use with a smartphone hot shoe adapter (sold separately) or trigger

• Action cameras: GoPro, DJI Osmo Action, Insta360 (with appropriate adapter)

• Compact cameras: Sony RX100 series, Canon G7X, etc.

• Mirrorless & DSLR cameras: Any camera with a standard hot shoe

Note: For cameras without a center contact (e.g., some Sony models), you may need a dedicated trigger or adapter. Check your camera’s flash compatibility.

Complete Product Specifications

What’s in the Box

• ULANZI SLO3 Spark Lite Camera Flash ×1

• USB Type‑C Charging Cable ×1

• User Manual ×1

(Hot shoe adapter for smartphones not included. Charging adapter not included.)

Perfect For

• Smartphone Photography – Add real flash power to your phone (adapter required)

• Action Camera Video – Constant light mode for vlogging and POV shots

• Compact Camera Flash – Small, lightweight, easy to carry

• Portrait & Event Photography – Bounce flash for soft, flattering light

• Macro & Close‑Up – Adjustable head for precise lighting

• Travel & Street Photography – Pocket‑sized, fast charging, long battery life

• Low‑Light Shooting – Focus assist helps your camera lock on in darkness

• Creative Lighting – Flash or constant light – experiment with both