From November 02 2011 11:47.
001 30w 230v ac driver.JPG
1301
kB
002 30w natural white led on cpu heatsink with thermal paste.JPG
1342
003 comparison of color with 25w halogen.JPG
1019
004 measuring surface temp with ds1820.JPG
1105
005 measure with pc fan blowing directly.JPG
1246
006 dallas 1-wire converter and sensor.JPG
1459
007 old 300w halogen components.JPG
1317
008 a 25cm pet plastic bottle acts as chimney.JPG
1164
009 fits perfectly.JPG
1203
010 very bright.JPG
1053
011 one better doesnt look into the leds.JPG
1208
012 ikea halogen spot 10w.JPG
1405
013 3w led with 16 x 5050 type smd.JPG
1396
014 3528 and 5050 smd powered units.JPG
1311
015 i just love this picture.JPG
1133
016 outside lamp with 2 x 1.8w 3528-based leds.JPG
1235
017 kept in place with a minimalistic wire.JPG
1340
018 the 4w 3528-based led against the 40w halogen.JPG
1042
019 distributes light similarly to the halogen.JPG
1213
020 2 x 20w led with 230v ac drivers in the box on ex-v6 mega-heatsink.JPG
1064
021 3 large pentium ii heatsinks on a solid aluminium block.JPG
1041
022 measuring core temp after long warm-up.JPG
1040
023 color temperature is not the best.JPG
1112
024 10w led with 12v 700ma driver.JPG
1315
025 integrated direct-drive capable 12.5v 15w led.JPG
1259
026 fastened onto an old heatsink.JPG
1289
027 pentium i 75mhz heatsink.JPG
1352
028 because of only 12.0 intead of 12.5 volts only half the brightness.JPG
1249
029 quite powerful even with 12.0 volts.JPG
1351
030 indirect lighting is preferred.JPG
1043
031 direct light is very bright and unconvenient.JPG
1130
032 plexi light bulb with 10w white led and 700ma 12v driver.JPG
1098
033 airflow works well.JPG
1018
034 air must pass the heatsink to exit through the plexi chimney.JPG
1465
035 air intake and chimney manufactured using hot air gun and transparent tape.JPG
1412
036 2x 15w nominal direct drive leds at 15w because of 12.0 volts input.JPG
980
037 the same to replace the cold white 30w 230v led.JPG
1379
038 lamp using the cold white plexi bulb with 7w power.JPG
039 a little too much is reflected downwards.JPG
1302
040 looks like in the disco with the plexi edges luminating.JPG
1287
041 looks very nice and strong from above.JPG
042 camera obscura effect on the ceiling with the shadow of an aloe plant.JPG
1085
043 nice power despite of the thick glass.JPG
1406
044 10w 12v ac-dc driver.JPG
1187
045 had to be cut in order to fit into fuel tank.JPG
1460
046 four drivers were hidden.JPG
1349
047 the new 4 x 10w lamp of the kid before soldering.JPG
1480
048 larger 10w modules mean better heat transfer.JPG
1318
049 the greeny 1 x 20w monster and the new sts lamp.JPG
1341
050 installed with 2 x 2.5 mm2 cableing.JPG
1074
051 capable of warp 8 speed.JPG
1178
052 3w 16 x 5050 smd 12v dc module installed as bedroom reading lamp.JPG
1076
053 tiny heatsinks preinstalled.JPG
1030
054 12vdc_consumption_20100911.ods
31
054 12vdc_consumption_20100911.xls
21
054 the same 3w modules as tv-time background lighting.JPG
1292
055 3 x 10w with 12v driver minimum concept with some technic pieces.JPG
1335
056 this will replace the voltage-sensitive (thus vibrating) large direct drive leds.JPG
057 nice warm white light running on 12 volts.JPG
1146
058 each modules holds 9 diodes.JPG
1100
059 1w led module with 3-9v driver connected to the new dynamo hub.JPG
1467
060 the original spokes were reused yet still a bit long.JPG
1417
061 cheap plastic melts even below nominal load - alternative on the right.JPG
1172
062 6w 5050-based ac led on the right is brighter than 25w e14 candle light bulb on the left.JPG
1111
063 5050-based products.JPG
1180
064 datasheets.JPG
1278
065 replaced a 11w compact - instant light is a must.JPG
989
066 nice lighting pattern.JPG
1092
067 very primitive inside of the 6w ac led.JPG
1424
068 each section is powered paralelly inclusive the top with different smd count.JPG
069 improvized improvement for better airflow.JPG
1326
070 better cooling of the cap.JPG
1223
071 more than enough brightness after the 25w bulb.JPG
1116
072 turned the cap to the inside to light the basin area rather than the ceiling.JPG
1007
073 another 6w type using 3528 smd-s could be disassembled properly.JPG
1295
074 ac electronics is minimal.JPG
1227
075 the pcb from behind.JPG
1320
076 historical gas lamp in budapest zoo.JPG
1426
xhtml 1.0 strict | css | contact | license cc by-nc-sa 3.0 | lapanet.hu runs sometines on solar power
 large direct drive leds.JPG){kind=link}
