Newest technology SMD ultra high output flashlight. Cures Solarez resin with the correct wavelength. Typically cures Solarez resin in 30 seconds or less. To reduce resin shrinkage and yellowing you can attenuate the light by moving the flashlight on and off the project. Comes complete with one rechargeable 18650 Lithium Ion battery and digital battery charger, good for hours of high-intensity light and hundreds of re-charges. Charger will blink red when charging and turn green when charge is complete