Power 3000 was a Sinclair ZX81 clone from Creon Enterprises. Identical with

Lambda 8300 The Lambda 8300 was a Sinclair ZX81 clone from ''Lambda Electronics Limited'' of Hong Kong. It had a modified ROM (including extra semigraphic characters) and extra hardware, making it not fully compatible. Total compatibility could be achie ...

and

PC 8300 PC 8300 was a Sinclair ZX81 clone from China with rubber keys, joystick port, and monitor port. Identical to Lambda 8300 The Lambda 8300 was a Sinclair ZX81 clone from ''Lambda Electronics Limited'' of Hong Kong. It had a modified ROM (incl ...

.Power 3000
Sinclair Clones, Sinclair Nostalgia Products

References

Sinclair ZX81 clones {{Compu-stub