Arayan
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- Oct 26, 2009
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The idea to write this mini technical review on a relatively old product as the Wicked Laser torch was derived from the fact that, on the web, there are a lot of articles or movies about the bright or burning power of the torch (that was able to set fire to paper, melt plastic and even scramble eggs…). Anyway, at the best of my knowledge, lacks a review in which the bright and burning power of the torch was quantitatively measured. For these reasons I try to quantify the “abilities” of the torch
Regarding the brightness I try to measure the light by means a luxometer placing it on evenly colored wall, and the torch was aligned to the sensor with the beam which forming a spot of 1 square foot. In the picture is reported a representative value of the luxometer (45990 lux ±80) of five separate measurements. After this test I measure the light in environment in the most unfavorable place for the flashlight (near the window) obtaining the value of 1655 lux, and a final measure for the torch of 44335 lux. This value can easily converted in lumen (see also Illumination Conversion - Online Unit Converter) obtaining a value of 4118.8562784 near the 4100 lumen claimed by WL. On the basis of this result I conclude that the power of the torch is a little underestimated.
After this little test I try to measure the heat power of the torch by means a standard thermometer which was used to calibrate other thermometers. I take the data at different distances (from 5 to 30 cm) and I reported the results as mean of three independents determinations with standard error bars. The results obtaining from graphical extrapolations indicate that near the bulb is present a tremendous heat (near 400 °C) that justifying the fried egg
Anyway the torch seems a good product even if the duration of the battery is very limited (about 9 minutes vs the 15 claimed) and, after few minutes all the flashlight becomes very hot to manipulate. Nevertheless the life of the battery can easily prolonged replacing the 100W bulb with 35, 50 or 75 W bulbs from your local shop.
Regarding the brightness I try to measure the light by means a luxometer placing it on evenly colored wall, and the torch was aligned to the sensor with the beam which forming a spot of 1 square foot. In the picture is reported a representative value of the luxometer (45990 lux ±80) of five separate measurements. After this test I measure the light in environment in the most unfavorable place for the flashlight (near the window) obtaining the value of 1655 lux, and a final measure for the torch of 44335 lux. This value can easily converted in lumen (see also Illumination Conversion - Online Unit Converter) obtaining a value of 4118.8562784 near the 4100 lumen claimed by WL. On the basis of this result I conclude that the power of the torch is a little underestimated.
After this little test I try to measure the heat power of the torch by means a standard thermometer which was used to calibrate other thermometers. I take the data at different distances (from 5 to 30 cm) and I reported the results as mean of three independents determinations with standard error bars. The results obtaining from graphical extrapolations indicate that near the bulb is present a tremendous heat (near 400 °C) that justifying the fried egg
Anyway the torch seems a good product even if the duration of the battery is very limited (about 9 minutes vs the 15 claimed) and, after few minutes all the flashlight becomes very hot to manipulate. Nevertheless the life of the battery can easily prolonged replacing the 100W bulb with 35, 50 or 75 W bulbs from your local shop.
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