The alternative to the Kensignton is the Zenith and Sherpa models.
Hi Anne. You can find the battery by unscrewing the end cap. They are 3 x AA rechargeable batteries.
Please look at our security lights ideally with a remote panel for a north facing wall, so you can place the panel where it gets the most light. If the light only needs to trigger a few times a day a non remote panel could work but we wouldn't recommend it.
By default the light will be off. Leave to charge for 3-5 days in the sun and then install. Use the pin to switch on. If switching on in day light simply cover the panel with a cloth so no lights gets to it and you should see the light come on.
The Kensington is a great performer year round, even on cloudy days. Batteries will last for up to 3 years and are replaceable. The Kensington is only available in natural white, 5000K.