Sodium light source, 20W low pressure discharge lamps for spectral work. Delivers approximately 350 lux at 20 cm and more than 90% of the light is concentrated in the doublet at 588.9/589.5 nm. Faint lines of the mercury spectrum are also visible.
Push-button, bright light, reusable penlight - Activated by depressing, new heavy duty switch - Striking metallic black finish or high gloss white - Two inchAAAinch batteries included - Measures 6inchx1/2inch, black
Emergency Flashlight, Combines radio, alarm, led flashlight and cell phone charger in one. Charges mobile phones and listen to the radio with the built in wind-up handle. It measures 61⁄2x2x2inch. The approximate weight is 10oz.
Multiband. For benchtop applications. Sliding wavelength selector allows separate or simultaneous selection of UV ranges. Intensity: shortwave - 650uW/cm2; longwave - 500uW/cm2. Casing made of impact-resistant plastic. 115V, 60Hz, 4W. UL listed. CSA certified.
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