COULD SOMEONE HELP ME OUT WITH LUX/LUMENS LEVELS.?
Question by : Could someone help me out with Lux/Lumens levels.? We would like to compare different light globes in lumens and lux. So I am trying to convert Watts to Lumens and Lux. PLease HELP. 100w Incandescent globe = ? lumens and ? lux 20w ES Compact Fluro globe = ? Lumens and ? Lux 36w Linear Fluro Tube = ? lumens and ?lux 13w GU10 Compact Fluro = ? Lumens and ? Lux 5w LED = ? Lumens and ? Lux 50w GU10 Halogen = ? Lumens and ? Lux 50w MR16 Halogen = ? Lumens and ? Lux Or any websites for dummies on converting watts to lux/lumens.You could direct us to would be great. Or is there a formula to do this?? if there just simple converter web site to use to help me maybe that we easier to get my answers.
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WHY AM I HEARING A HIGH-PITCHED WHINE WITH 12V BATTERY AND HALOGEN BULB?
Question by msoexpert: Why am I hearing a high-pitched whine with 12V battery and halogen bulb? I have a 12V, 8A LED dimmer that I have been using with flexible LED strip lights. And it’s worked just great!
The other day, I was at Home Depot and they had 12V, 50W halogen floodlights (MR16) on sale for just $ 0.67. So I purchased 2 to use with my dimmer. And the dimmer works great with it. The bulb dims and brightens. I hear a high-pitched whine as I adjust the dimmer from dim to very bright.
At first, I thought it was coming from the bulb. But it’s really coming from the dimmer. The battery powering the bulb is a 12V, 1.3AH battery pack (Ten 1.2V, 1300ma Nimh batteries). And if I bypass the dimmer and just hook up the battery to the bulb, it’s super bright and no whinning sound.
The dimmer doesn’t make a sound with anything else it’s connected to. So if I hook the battery and dimmer to a 21 LED MR16 bulb, no whinning or problem. Same with connecting LED strip lights. It’s just that 50W halogen that is causing the dimmer to whine.
Because the halogen is the most powerful light I am using, the only thing I can think of that is causing the whinning is the dimmer switch is not able to handle the roughly 4A current the bulb is drawing. But that would be 1/2 the 8A rating of the dimmer and I doubt it’s that bad.
Any help you can offer me would be appreciated! FYI, it’s the halogen bulb that is making the whinning, not the dimmer!
I’ve heard that AC dimmers can have trouble with clean waveforms, causing whinning. Is it possible the same thing is happening here with DC?
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Q&A: PROBLEMS WITH LED LAMPS?
Question by : Problems with LED lamps? Ok, so basically I am working on a project an the moment. I want to create an innovative, energy-efficient lighting design using new technology such as LED lamps.
The basic specs of the lamps are as follows:
12v MR16 fitting Dimmable White (ish) light
The problem is, I am a bit confused with how to incorpoate a mains voltage to 12v transformer into the circuitry. I am also confused with the term ‘Trailing edge dimmer’, which seems to be something I need if I am to use a dimmable LED bulb.
Can anyone help me? I need some directions as to what to do.
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REPLACING 50W MR16 HALOGENS WITH LEDS?
Question by : Replacing 50w MR16 halogens with LEDs? Let me preface by saying I am not a electrician and am new to this recessed lighting game. But what I’d like to do is replace my existing 50w MR16 bulbs with a low energy option (like LED). I am aware there could be some light appearance issues and the non-dimming factor, but can it be done? I have ELCO low-voltage lighting system, but not sure if the transformer will work with LED replacements. I assume, and correct me if I am wrong, that if I try LEDs then the worst that could happen would be the LEDs do not draw enough power for the transformer to work and the lights just do not turn on? Thanks for any advice.
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