Light Comparisons between TillyTec and other Dive Light Manufacturer

IMPORTANT

This is not a test about technical details around the size of the lights, equipment, battery technology, like watt, performance, burning time or around a price comparison. In this test we only show solely what arrives still on optical power at the illuminated object. The optical power which arrives at the illuminated object is measured in lux. Everybody can comprehend these tests and therefore check with simple means.

NOTE

The measuring of lux is one-course method to measure e.g. an illuminated workplace. Because everybody knows that a 10 watts neon tube can exactly produce so much light as a 50 watts light bulb.

WHY

we have taken this light test? We want finally make an end with the watt lie. Because the measured value into lux at the object gives information about the still arriving optical power. The lux detail makes it possible directly for lights to compare and to understand that e.g. the same watts of performances are not the same optical powers, because there are not these differences only at LED but also at halogen.

INTRODUCTION into the Light Test

First: Take a look at this comparison of 30 Watts Halogen burner here.

The comparison of the two 30 watts halogen burner is very interesting; these both come from the house Philips. Here and this gets quite clear that two absolutely identical 30 watts of halogen burner do not deliver the same optical power although that these two halogen burners come from the same manufacturer and both work in the same MR16 reflector. The difference of the optical power gets quite clear then if we take the HLX 30 burner to this. Fact is, all three halogen burners have 30 watts of an electrical dissipation power and therefore absolutely identical, but the optical power that arrives at the examining object is enormously different. The HLX 30 is more than twice as brightly as a standard 30 watts halogen bulb.

INFO

To the method of testing with a lux meter: Of course it is so that the optical power of the illuminated area decreases strongly, if the angle of radiation changes. So e.g. a 30 watts halogen light has at 10 degrees irradiation an optical power of approx. 6000 lux, the absolutely identical halogen light at 60 degrees irradiation has only 800 lux. This is also understandable, because the complete light quantity that the burner emits remains the same, but this same light quantity is distributed on more area. For our test, however, this is without importance because almost all manufacturers to this have decided to keep the angle of radiation of their diving light as low as possible. So the irradiation angles have evened out between 10 and 20 degrees at almost all manufacturers of diving light. Of course we can change the irradiation angle at some diving lights but this is not about this light in this test. Here we test only diving lights which narrowly beaming and therefore are also comparable.

PLEASE NOTE

If a manufacturer should not be satisfy with the test result, we ask for communication of the measurements or sending of a new one to measured test candidates. The new measurements are going to be published here immediately after examination. Measuring tolerances and measuring errors are reserved and we ask to excuse this. Original pictures with the view of the reading off measurement can be requested direct.

The light comparison test of the individual lights represents the measurement result on the day of the measurement. By further development of the lights the performance details can change or improve. We ask for note if changes submit to lux with regard to the optical power measured.

Brief Overview of current Optical Power different Diving Lights

*Measurements in Lux / Candela