The BLK2S Thunderbird Solar Electric Fence Energiser is capable of powering up to 2.5km of normal fencing wire, or 50m of electric netting.. Therefore this model is a good starter energiser for those who want a portable energiser with enough power to suit a small fencing application.
The BLK2S is very similar to the Thunderbird S28B in terms of performance. Please note that it does not come with an AC adaptor. Therefore you will need to charge the energiser directly from the solar cell rather than using mains power.
If you wish, you can purchase an AC adaptor to suit this model for an extra $49.00