NrG Spark
Spark packs 630, 660, 810, and 830 nm into 12 high-power dual-chip LED lenses with rechargeable power, multiple red/NIR modes, four brightness levels, pulse control, and simple on-device operation.
Spark irradiance measurements.
At 3 inches, these measurement photos document 55.643 mW/cm² on an OHSP-350IR spectrometer and 1046 W/m² on a solar meter—the equivalent of 104.6 mW/cm².
Equivalent to 1046 W/m² · 3 inches
Serious capability in a portable format.
Spark is not meant to imitate a full-size panel. It is built to do the portable job exceptionally well: four targeted wavelengths, rechargeable power, multiple red/NIR modes, four brightness levels, pulse control, a built-in timer, and a rubber rear grip band in a compact aluminum housing.
Designed to travel.
USB-C charging
Simple 5 V / 2.0 A input for the internal 10,000 mAh battery.
Rear hand grip
The rubber rear band helps secure Spark in your hand during use and transport.
On-device controls
Switch R/NIR modes, pulse, brightness levels, and session timing directly on the device.
Spark setup, controls, and care
Use the illustrated Spark manual for first-session setup, button functions, charging, battery care, troubleshooting, specifications, and warranty information.
Reviews of NrG Spark.
Approved reviews from Spark customers, including customer photos and video links when submitted.