Bicycle light

In these days, I maintain an old my bicycle. Because, I'll join the race of bicycle on November.
I bought bicycle's head lamp and rear lamp. They are very very bright more than I imagined.
I had enjoyed bicycle about 8 years ago. The lamp was not so bright.
When I used it from my window as a test, the lamp shined a wall which was there more than 100 m far away.
I'll bring them to my office on Monday, and I'll assemble to my bicycle.