If this is really a 10W light, then why does it only draw .39 amps from a 12v supply? It's really only a 5W light.
1657854
I don't see .39 amps anywhere in the specs. The unit I have is very bright and based on comparisons to other lights it seems plausible that it's really 10W. It's bright, at least the one I have.
1657855
Your math is correct. I don't know. There are reflectors in the light to help with the brightness. Maybe they are comparing the power to a 10 watt. I am very happy with mine and they are bright. I use them in my barn with solar charging battery up and the. Use a switch for the four lights.
1500513
I checked the box that my lights came in and it says 1.9A @ 12v, 0.8A @ 24v. It seems like when I installed them I checked the current draw and it was about 1.0A but can't remember for sure. However, using 27 watts and 12 volts it calculates out to 2.25 amps. I know mine are not drawing near that much.
177968
The technical details say: Capacity: "10000mAh / 37Wh", which means (if I correctly understand how electricity works) that the 10,000 mAh is based on the 3.7v output (3.7V x 10Ah = 37 Wh). This would correspond to 3,000mAh at 12v (37Wh/12v = 3.08Ah), assuming perfect correspondence (no loss), which is probably not the case. So, expect less than 3,000 mAh at 12v in reality...
1002354
the short answer is yes. i am not sure the amperage draw of the lights. I have mine on a 10 amp fuse.
1588499
Nope... sounds like it is defective. The power requirements are the same as a 100W incadescent (even less than actually). Just contact Amazon (or the seller) and let them know and they should send you a new one (and pay for shipping the old one back).
910585
I went to look on the fuse to see if it had any numbers written on them. They have some numbers embossed on one of the ends. They are hard to read if you don't have enough light and hold them the right way. But the number reads F15AL 250V, for anyone who has the same question. (I am the same person that asked the question, but on a friend's account since I can't answer my own question.)
1887187
I measured 1.25amps for one 5m string of cool whites at 12 volts, so you might just be able to run 2 strings off a 30w supply as that would be 2.5amps. Might need to watch the temperature of the power supply. I opted for a 5amp/60w supply to run 2 strips in my attic installation (since it can get quite hot up there), and if needed I could add a 3rd strip w/o issue with that supply. Not that much more expensive for a few extra amps of supply.
1830156
Well it's 27 watts so 27w/12v=2.25 amps 1.125 on a 24 v system Lights are rated at 10-30 volts
1829404
The lights draw 1.5a each. Here is a link to a conversion table for future reference. http://rapidtables.com/calc/electric/Watt_to_Amp_Calculator.htm
1273433
Short ans. NO The literature says it draws 18 amps at 12v. That works out to just over 200 watts or less than power to supply a 300 watt light bulb. The 2 amps is way to small a capacity
367759
I am replacing the current bulb which draws approximately .9 amps 12V DC. I would guess that the draw would be 0.2 amps or less. By the way these bulbs are bright and seem to be high quality. My application is for the low voltage landscape lights.
2112586
It draws less than 2 amps each. Once installed, I measured both lights at the same time and I remember it was beetween 3 and 4 amps. I didn't even install a relay-
1038296
The light is charged with 12V/500mA. The power supply that came with it is only specified for 120V primary, so you would have to get your own power supply that delivers 12V/500mA.
1036952
I installed mine recently, and measured the power, but not the current directly. In standby, the KillAWatt shows 0W, and powered it draws 4.7W. This includes a small wall wart PS, with the illuminator attached by a 100' siamese cable. These numbers are close to what gth posted, so I'd rely on his more precise numbers.
1549525
My lamp, shipped 7-2012, uses 3.24W, 270ma @ 12VDC. You have brought up my only complaint with this item. Because these SMDs are wired as 12 sets of 3 chips in parallel, and each chip should be driven at 20ma max, optimally this board should be configured to draw 240ma, which it does at 11.75VDC. At 12VDC each chip draws 22ma, or 10% over its design specification. Since autos often supply 14V, in some applications the 'bulb' will run hot and not last as long as it should.
1241905
It only puts out 6 watts at 12 volts P=E x I therefore..... 6Watts = 12Volts x .5Amps Get it? .5 Amps output.
64387
It states that the socket can handle 15 Amps at 125 Volts or 1874 Watts. The light itself is rated for 1 Watt but the actual power consumption will change depending on which brightness level you select. I have no idea where are getting the illogical 12 watts from but please state the source.