Aputure LS 300X

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350W bi-color LED with extended 2700K–6500K range, 24,300 lux at 1m, and constant output mode.

The Aputure LS 300X is a bi-color LED spotlight with an extended color temperature range that goes beyond traditional bi-color limitations. The fixture offers a "Constant Output" mode, ensuring consistent brightness when changing color temperatures.

History & Development

Aputure introduced the LS 300X in 2019 as an evolution of the original LS 300d from 2017. The Chinese company established itself as an alternative to established manufacturers like ARRI or Kino Flo through aggressive pricing and high quality standards. In 2021, a firmware update followed with expanded DMX functions and improved app integration. The X-series introduced variable color temperature to Aputure's mid-range, a feature previously reserved for more expensive models.

Practical Use in Film

The LS 300X is suitable for interior shots as a key light in smaller spaces or as a fill light in larger productions. The variable color temperature eliminates the need for gels and allows for quick adjustments between artificial light (3200K) and daylight (5600K). For documentaries, camera crews appreciate its quiet operation for interviews. Battery operation makes the unit independent of mains power, though runtime is limited to approximately 45 minutes at maximum output with a 150Wh battery.

Comparison & Alternatives

Compared to the ARRI SkyPanel S30-C, the LS 300X offers similar color quality at a fraction of the price but lacks RGB functionality and advanced effects. The Godox VL300 achieves only a CRI of 95 at a similar price point. As a successor, Aputure introduced the LS 300d Mark II in 2022 with improved cooling and higher light output. For mobile applications, the LS 300X remains relevant due to its balanced ratio of performance, weight, and price.

Technical Specifications

Light Output

Configuration	1 m	2 m	3 m	5 m	7 m
Without Modifier @ 5500K	8,100 lux	2,025 lux	900 lux	324 lux	165 lux
Standard Reflector (55°) @ 4300K	24,300 lux	6,075 lux	2,700 lux	972 lux	496 lux
Standard Reflector @ 2700K	19,800 lux	4,950 lux	2,200 lux	792 lux	404 lux
Standard Reflector @ 6500K	21,600 lux	5,400 lux	2,400 lux	864 lux	441 lux
Fresnel 2X (Flood)	38,000 lux	9,500 lux	4,222 lux	1,520 lux	776 lux
Fresnel 2X (Spot)	56,000 lux	14,000 lux	6,222 lux	2,240 lux	1,143 lux

Specifications

Property	Value
LED Power	300 W
Max. Power Consumption	350 W
Color Temperature Range	2,700–6,500 K
CCT Presets	2,700K, 3,200K, 4,300K, 5,500K, 6,500K
CRI	≥ 96
TLCI	≥ 96
CQS	≥ 95
SSI (Tungsten)	85
SSI (D55)	74
Beam Angle	105°
Dimming	0–100% flicker-free (20,000 fps)
Output Modes	Max / Constant
Light Effects	9 FX
Mount	Bowens-S
Control	Sidus Link, 2.4GHz, DMX-512
Fan Noise	< 20 dB