|Product ID: TSDLWW|
|Weight: 0.40 kg|
|Product Barcode: 5060188642497|
The diameter is 115mm.
As long as it can fit and you can secure the light with the screws provided, that would be safe.
We do not recommend that, but you could possibly use the stake to keep the lights securely in place.
Yes, you would just need to tap the light until it turned off.