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#31 | |
SiaoGu Gives You Wings
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FYI, a luxeon 3watt LED only have an output of 55lumens. |
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#32 | |
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My claim that 17 watts if incandescent light typically produces 170 lumens ? Or their claim that their lamp uses only 1 watt and produces as much light as a 17watt incandescent light. Incidentally, unless my maths is failing me (and it may well be) Optolum were producing an led lamp that could produce 83.3 lumens for 3 watts almost 3 years ago; they may well have improved since then. See here: http://www.analogzone.com/grnp0811.htm I've emailed both Optolum and Ultraleds to find out what their state of the art is at the moment and whose led they are using; I'll post their responses. Last edited by aropal; 06-10-2006 at 05:37 PM. |
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#33 | |
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Hail to technology advancement. I still remembered my younger days when I had a huge argument with my lecturer. The topic was 2 valves (or max 3 valves) per piston head (petrol). I said 4 was possible and furthermore, ferrari was toying the idea of having 5! ![]() |
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#34 |
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So pic taking is yr problem.Wonder how couple of AF bros here take some lovely pics.I have a lousy Nikon 4600 feel its no good for fish shoots.
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#35 |
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I have just had a reply from Solux it seems they ship to Singapore directly from their warehouse in Taiwan.
In fact it would probably be cheaper for me to buy from there and ship to the UK. These are the people involved: www.eiko-ltd.com If you want a price you can email: Aaron Liao at aaron@eiko-pacific.com and give him your requirements for, "color temperature & beam spread" and he'll give you a price. [Don't forget you will be projecting the light from air to water so the high refractive index of water will reduce the beam spread by quite a lot so get the widest beam angle possible. ] |
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#36 | |
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Luxeon LEDs give out alot of heat for their tiny size and can fry itself if the heat is not well dissipated. |
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#37 | |
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#38 | |
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Currently philips luxeon are the industry leaders in high power LED and lighting manufacturers are still using their luxeon LEDs. 1watt and 3watt LEDs are actually the same. The higher quality dies will be sold as 3watt and lower grade dies will be sold as 1watt LEDs. The optical surface of LEDs are of course cool to touch. However, the back of the die is very very hot. Heat is the ultimate enemy of electronics and you will need a very efficient cooling method to pack a large array of luxeon LEDs. |
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#39 | |
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#40 |
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