Question 1

Can you set these to turn on and off via touch, instead of changing the color on touch?

Accepted Answer

Yes...as long as you understand you have to touch every light separately.  The tap sequence is as follows:

Red/Yellow/Aqua/Blue/Green/Violet/Light Blue/White/Jump (All Colors)/Fade (All Colors)/OFF

So, you'll likely have to touch each light multiple times to turn it off.  Using the remote control is probably more effective because it will turn all lights off at the same time (provided it's aimed just right), and when you turn all lights on again with the remote the previous pattern/color selection/brightness level will be retained.

Question 2

How many can be hooked together?

Accepted Answer

Here's a quote from my product review that addresses your question.  In my case I used a standard USB charger to provide power; the seller supplies only the USB cable and lets the user figure out how the lights are to be powered:

The product's user guide doesn't recommend running more than 20 LED modules from the provided power supply (too high of a current draw). I found that when all 10 of modules in the Minimalist Pack were connected, colors like white (which uses all LEDs in a module) didn't look uniform across the set because the power supply was being strained. Adding another 10 modules (for a total of 20) made matters much worse. I ended up purchasing another power supply (adapter) rated at twice the load capacity to fix the color/brightness uniformity issue. Multiple power supplies feeding about 8 modules each could also work, as long as the electrical links between modules were arranged to avoid connecting two or more feeds together.

To summarize:  20 is the maximum number of lights that can be ELECTRICALLY connected together safely, although the visual results may not be satisfactory.  You can, however, link as many as you like MECHANICALLY if you buy additional USB power supplies and are careful to electrically link only 10-20 lights from each one.

Question 3

Does this play or sync to music?

Accepted Answer

No, they don't. Just have a remote control to set them up in different colors or modes.

ASIN	B0BBTLN78G
Brand Name	Vcwtty
Bulb Base	E26
Color	multi
Connectivity Protocol	USB
Control Method	Touch
Controller Type	Remote Control
Customer Reviews	4.4 4.4 out of 5 stars (372)
Finish Types	Polished
Fixture Type	Wall Sconce
Included Components	Remote Control
Indoor Outdoor Usage	Indoor
Installation Type	Wall Mount
Item Weight	490 g
Light Color	Multicolor
Light Fixture Form	Wall
Light Fixture Installation Location	wall
Light Source	LED
Lighting Method	LED
Manufacturer	Vcwtty
Material Type	Acrylonitrile Butadiene Styrene
Mounting Type	Wall Mount
Number of Items	6
Number of Light Sources	13
Other Special Features of the Product	Color Changing
Power Source	USB cable power supply
Recommended Uses For Product	Decoration
Required Assembly	Yes
Room Type	Bedroom, Living Room
Set Name	Hexagon Lights 6-Pack
Shade Color	Multicolor
Shade Material	Plastic
Shape	Hexagonal
Size	3.90 inches
Specific Uses For Product	Color-guided learning
Style Name	6 Pack Complete Kit
Switch Type	remote,touch
Theme	holiday
Unit Count	6.0 Count
Water Resistance Level	Not Water Resistant
Wattage	37.5 Milliwatts

Vcwtty Hexagon Light Panels with Remote, 13 Colors, 6 Pack

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