![]() We estimate that the relative risk to keratinocyte DNA in human skin, in vivo, from exposure to the 50-watt halogen lamp at a distance of 7 cm is between 27 and 400% of the noontime summer sun in Michigan. We conclude that direct radiation from these lamps can cause damage to human skin, due to their UVC and UVB output. This is approximately 4 times more rapid than that of the noontime summer sun in Michigan. At a 7-cm distance the lamp induces approximately 3.9 pyrimidine dimers/100,000 bp/min. Halogen lamps Halogen lamps Discover from a wide range of Philips Halogen Lamps that offer sparkling bright quality of light and a long lifetime. We also measured the pyrimidine dimer-forming potential of the lamps relative to the sun for the purpose of estimating the DNA toxicity of the lamps. The UVB and UVA output of the lamp is roughly similar to the solar output under these conditions. At 290 nm, the lamp output is approximately 3 x 10(-6) W/cm2/nm, 5,000 times greater than the summertime sun at 1 p.m. Solar radiation at this wavelength is undetectable on the earth's surface, i.e., less than 10(-12) W/cm2/nm. We measured its ultraviolet output spectrum and the biological toxicity of its radiation by means of its pyrimidine dimer-inducing capability.Īt a 1-cm distance, the 254-nm light output of the lamp is 3 x 10(-7) W/cm2/nm. We studied a 12-volt 50-watt quartz halogen lamp. The objective of this study was to determine the relative risk of injury to humans due to the radiation from these lamps. The radiation from quartz halogen light bulbs has been reported to cause erythema in humans and skin tumors in experimental animals. Halogen Lights, Lighting Bulbs & Globes LightOnline Home All Categories Specialised Lamps Stage Studio Lights Halogen Lights Halogen Lights Items 1 - 20 of 41 Sort By OSRAM Halogen Lamp 64672 M40 500W 230V 2900K GY9.5 SKU: 3014 87.
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