The Shimano Steps SW-E7000-L left switch is a great addition for your e-bike. It comes with a 400mm electric wire, cord bands (A x2, B x1), and an E-Tube EW-SD50 cable. This switch is used to control power-assist modes on Shimano STEPS e-bike drive systems. The left-hand switch unit has two large buttons. You can use them to increase or decrease assistance or engage the walk assist mode. It offers multiple selectable support modes. The 'Boost' mode gives full support for maximum boost and great climbing, with high, medium, or low assist levels. The 'Trail' mode provides smooth support on technical terrain, adjusting support based on pedal pressure and also having three assist levels. The 'Eco' mode is ideal for long trips. And the 'Power Walk Assist' helps when you need to walk your bike, and it's easy to activate. It's compatible with Shimano Steps e-bike systems.

Using the Shimano Steps SW - E7000 - L switch is straightforward. First, make sure it's properly connected to your Shimano STEPS e - bike drive system using the included EW - SD50 E - Tube cable. To control the power - assist modes, simply use the two large buttons on the left - hand switch unit. Press one to increase assistance and the other to decrease it. To engage the walk assist mode, just press the appropriate button. When choosing a support mode, think about your riding situation. For a quick boost or tough climbs, use the 'Boost' mode. On technical terrain, the 'Trail' mode will adjust support based on how hard you pedal. If you're going on a long trip, the 'Eco' mode is a good choice. When you need to walk your bike, activate the 'Power Walk Assist'. As for maintenance, keep the switch clean and dry. Check the connections regularly to make sure they're secure. If you notice any problems with the switch or the cable, have it checked by a professional.