OMG! These are so much fun! They are so bright! Low level flight at night just creates a wide path of light that has to be seen. And at high altitude you can't loose your Alias against the night sky when pointed directly down. They don't even seem to draw hardly any extra power. They are very light (no pun) and any diminishment in performance is negligible. Easy on-off in the field only takes seconds. Great design. I cannot think of a single downside or design improvement. Five star A+ for sure! Just use with common sense....don't buzz vehicles or point inside resident windows. This could cause an unwelcome response. Have fun!