可変レーザー輝度バッテリーキャップ/スイッチアップグレード（レーザーコリメーター用）(SI-VLB)

Took me a minute to get used to the dial placement, but now I can't imagine collimating without it. The variable brightness lets me drop the laser level way down for close-range work, which saves my eyes and my battery.

The variable brightness dial is a game-changer for fine-tuning my laser alignment; I can dial it way down in a dark room and still see the dot clearly. It threaded onto my collimator perfectly and feels solid.

I was tired of squinting through the brightest setting, so this variable brightness cap is a game-changer for fine-tuning my laser collimator. The twist mechanism feels solid and the difference between levels is perfectly noticeable.