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Electrical Engineering

Questions tagged [lighting]

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206 questions
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4 votes
2 answers
556 views

I'm not sure if this is the right place to ask or not but I had an electrical question. If you have a strand of mini-lights that are 2.5 V 0.25 watt on a 300 watt strand, it's normally broken into ...
Proph's user avatar
  • 59
0 votes
0 answers
62 views

In DALI, I first store the transition time in DTR0, and then I send the Fade Time command (0x2E). In this case, fading works as expected. If the transition time is less than 1 second, the color ...
Prashanth's user avatar
  • 25
2 votes
1 answer
182 views

I found this marking on a led power supply, together with the usual class II, WEEE and similar symbols: The only thing I found is the name "auxiliary independent lights", which really doesn'...
Lorenzo Marcantonio's user avatar
  • 375
-3 votes
1 answer
101 views

I want to implement a fade rate control for a DALI light. When I press and hold a button, we are getting "Move Up" or "Move Down" information with a specific fade rate. However, i ...
Prashanth's user avatar
  • 25
1 vote
1 answer
156 views

In the lighting industry, there are some daisy-chainable Ethernet devices (fixtures), that offer the feature of passing through the Ethernet connection even when the device is not powered on (Robe ...
larsfu's user avatar
  • 41
1 vote
1 answer
173 views

I'm fairly new to electronics, though I have a basic understanding of simple circuits. I'm trying to hook up a hazard light switch with a relay on my motorcycle (12V system) as a DIY project. The ...
Knight King's user avatar
  • 21
0 votes
1 answer
100 views

I have recently started a project for lighting my garden. For I have decided to use 100 VDC and will be bucked for each led strip (there will be several led strips rather than a single led strip for ...
Raihan's user avatar
  • 103
0 votes
0 answers
92 views

I plan to drop a 4-20mA hydro-static pressure sensor into a well to measure water levels. What is the best way to protect the sensor against surges, namely distant lightning? Why I'm asking? I've ...
akwky's user avatar
  • 1,642
1 vote
1 answer
85 views

I am looking for a way to test to see if a phase cut dimmer on a 220V AC circuit is set to over a certain approximate percentage of full power, and use the output of that test to trigger a relay ...
Eberhard's user avatar
  • 21
1 vote
2 answers
326 views

I'm working on a lighting project, and trying to scope out different power source options. I want to use a 12V LED lighting source, preferably one that could be easily replaced as to extend the life ...
Tristan Kmoch's user avatar
  • 11
0 votes
1 answer
126 views

We are using STM32F765 as DALI master and trying to address a few DALI drivers. We are experimenting with different wiring methods to connect the DALI drivers to the master, such as bus and star ...
Srikanth_duba's user avatar
  • 1
0 votes
1 answer
158 views

I am using the DALI system in which I use the broadcast method. Now I want to work on individual addressing. I want to know how to start. In the broadcast method which I am using now, I am using one ...
Prashanth's user avatar
  • 25
2 votes
2 answers
197 views

I want to protect an antenna port operating in the L-Band frequency range from lightning. I cannot use ready-made RF surge protector connectors. Instead, I was thinking of placing a GDT at the port ...
mali's user avatar
  • 59
0 votes
0 answers
114 views

This is the drawing of a panel that would be installed in a CNC workshop on the basement floor within an industrial facility with a busbar system. this panel will be used for energizing LED lighting ...
MECHA's user avatar
  • 11
1 vote
1 answer
181 views

I have x and y values. I want to send that value to the DALI driver. I got this image of commands from this answer. As shown in the image command 224 is used for set temporary x-coordinate and 225 is ...
Prashanth's user avatar
  • 25

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