Ulanzi SL01 Spark Lite Camera Flash Light

The Ulanzi SL01 Spark Lite Camera Flash Light is an ultra-compact manual flash for the hot shoe mount, designed for everyday photography. It features a guide number (GN) of 8, a color temperature of 6500 K, a CRI of 96, four power levels, and a built-in 250 mAh battery with USB-C charging.

The SL01 is the smallest model in the Spark Lite series and is ideal as a flash that can be kept in your pocket or a small bag at all times. With dimensions of 43 × 35 × 28 mm and a weight of 33 g, it serves as a practical backup for situations where natural light isn’t enough.

The flash operates simply in manual mode via a universal single-contact hot shoe mount. Four power levels allow you to quickly select the intensity, ranging from subtle fill light to full power, and the guide number (GN) of 8 at ISO 100 covers close-up portraits, detailed shots, and travel photography.

The light has a color temperature of 6500 K and a CRI of 96, providing a neutral and consistent flash. The recycle time depends on the power setting: at 1/8, you can shoot continuously; at 1/4, approximately every 2 seconds; at 1/2, every 3 seconds; and at full power, approximately every 5 seconds.

The built-in 250 mAh battery can handle up to 375 flashes at full power and charges via USB-C in approximately one hour. The SL01 is compatible with cameras featuring a standard hot shoe mount and is designed for simple manual photography without TTL communication.

Key Features

• ultra-compact manual hot shoe flash
• Guide number (GN) 8 at ISO 100
• Color temperature 6500 K
• CRI 96 for consistent light
• 4 flash power levels
• Recycle time: approx. continuous / 2 s / 3 s / 5 s depending on power level
• Built-in 250 mAh battery
• Up to 375 flashes at full power
• USB-C charging in approximately 1 hour
• Lightweight at 33 g