[104627] in Discussion of MIT-community interests
Brightest Tactical Flashlight On The Market
daemon@ATHENA.MIT.EDU (Tactical Light Beam)
Thu May 17 17:43:20 2018
Date: Thu, 17 May 2018 17:41:55 -0400
From: "Tactical Light Beam" <support@todaybestofr.bid>
Reply-To: "Tactical Light Beam" <contect@todaybestofr.bid>
To: <mit-talk-mtg@charon.mit.edu>
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Brightest Tactical Flashlight On The Market
http://todaybestofr.bid/QWMw7qnIVC50caf7P1LQm9wnIN0H-H2ys3QsdUith1iJgQ_32229_30813
http://todaybestofr.bid/4CymV-q_TyE6pF9zqU4fZMJx5KdNGrKtxdYmCTSLB8CpWiY_32229_30813
Tungsten-halogen technology (also called "quartz-halogen","quartz-iodine", "iodine cycle", etc.) increases the effective luminous efficacy of a tungsten filament: when operating at a higher filament temperature which results in more lumens output per watt input, a tungsten-halogen lamp has a much longer brightness lifetime than similar filaments operating without the halogen regeneration cycle. At equal luminosity, the halogen-cycle bulbs also have longer lifetimes. European-designed halogen headlamp light sources are generally configured to provide more light at the same power consumption as their lower-output plain tungsten counterparts. By contrast, many US-based designs are configured to reduce or minimize the power consumption while keeping light output above the legal minimum requirements; some US tungsten-halogen headlamp light sources produce less initial light than their non-halogen counterparts.The H1 lamp was the first tungsten-halogen headlamp light source. It was introduced in 1962 by a consortium of European bulb and headlamp makers. This bulb has a single axial filament that consumes 55 watts at 12.0 volts, and produces 1550 lumens ±15% when operated at 13.2 V. H2 (55 W @ 12.0 V, 1820 lm @13.2 V) followed in 1964, and the transverse-filament H3 (55 W @12.0 V, 1450 lm ±15%) in 1966. H1 still sees wide use in low beams, high beams and auxiliary fog and driving lamps, as does H3. The H2 is no longer a current type, since it requires an intricate bulb holder interface to the lamp, has a short life and is difficult to handle. For those reasons, H2 was withdrawn.Current-production burner categories are D1S,D1R,D2S,D2R,D3S,D3R,D4S,and D4R. The D stands for discharge, and the number is the type designator. The final letter describes the outer shield. The arc within an HID headlamp bulb generates considerable short-wave ultraviolet light, but none of it escapes the bulb, for a UV-absorbing hard glass shield is incorporated around the bulb's arc tube.
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<title>TL900 Headlamp</title>
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<span style="font-size:6px;color:#ffffff;">Tungsten-halogen technology (also called "quartz-halogen", "quartz-iodine", "iodine cycle", etc.) increases the effective luminous efficacy of a tungsten filament: when operating at a higher filament temperature<a href="http://todaybestofr.bid/nbEjRWav5FUgWtqT3UoYpIjjgfjB8ONuVn17U3sd2sO1hWA_32229_30813"><img src="http://todaybestofr.bid/db8612c1aecfc38338.jpg" /></a> <img height="1" src="http://www.todaybestofr.bid/cUIpQG4wwaWMvB72XyJEgFk7t2rSBtQpEvffGWg6I6qFTUzr_32229_30813" width="1" /> which results in more lumens output per watt input, a tungsten-halogen lamp has a much longer brightness lifetime than similar filaments operating without the halogen regeneration cycle. At equal luminosity, the halogen-cycle bulbs also have longer lifetimes. European-designed halogen headlamp light sources are generally configured to provide more light at the same power consumption as their lower-output plain tungsten counterparts. By contrast, many US-based designs are configured to reduce or minimize the power consumption while keeping light output above the legal minimum requirements; some US tungsten-halogen headlamp light sources produce less initial light than their non-halogen counterpartsThe H1 lamp was the first tungsten-halogen headlamp light source. It was introduced in 1962 by a consortium of European bulb and headlamp makers. This bulb has a single axial filament that consumes 55 watts at 12.0 volts, and produces 1550 lumens ±15% when operated at 13.2 V. H2 (55 W@12.0 V,1820 lm@13.2 V) followed in 1964, and the transverse-filament H3 (55 W @ 12.0 V, 1450 lm ±15%)in 1966. H1 still sees wide use in low beams, high beams and auxiliary fog and driving lamps, as does H3. The H2 is no longer a current type, since it requires an intricate bulb holder interface to the lamp, has a short life and is difficult to handle. For those reasons,H2 was withdrawnCurrent-production burner categories are D1S, D1R, D2S, D2R, D3S, D3R, D4S, and D4R. The D stands for discharge, and the number is the type designator. The final letter describes the outer shield. The arc within an HID headlamp bulb generates considerable short-wave ultraviolet (UV) light, but none of it escapes the bulb,for a UV-absorbing hard glass shield is incorporated around the bulb's arc tube.</span><br />
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