Сolour rendering index
СRI is a parameter indicating how accurate a "given" light source is at rendering color when compared to a "reference" light source. The higher the CRI, the better the color rendering ability.
Light source with CRI=100 emanates optimum light excellent at color rendering. Natural sunlight is considered to have CRI=100. The lower the CRI the worse color rendering is.
Light torches with a CRI of 90 are considered maximal, the most common index is between 80 and 95.
OLDI-light torches come with CREE LEDs that have CRI of 92 and higher.
Color temperature is conventionally expressed in Kelvins, and varied from 3000K to 5000K.
Color temperature of 3000 K is "the warmest", of 5000 K - "the coolest".
The image shows the approximate color temperature range.
Lumen (lm) is a measure of the total quantity of visible light emitted by a source. Below you may find the figures for incandescent bulbs. Regular 100 watt incandescent bulb has 1340 lm.
OLDI-light torches are between 2000 lm and 2654 lm.
I use original Li-ion 4000mAh rechargable batteries from ROBITON.
- They yield up to 10 times more charge-discharge cycles as compared to regular models
- Failure interval is up to 1000 cycles
- They function in cold temperatures (down to -30’C) without loosing their operating properties