The small appearance and size of the One Hand Gaming Keyboard is one of the key points for users to choose.The maximum length of the keyboard in one-handed games is usually only half or even less than one third of the standard keyboard.The most comfortable position for both hands is usually slightly larger than the shoulder width of the player (the distance between the tail fingers of both hands is about 500-650mm).When using the standard keyboard, between the mouse and the keyboard. The clearance for Gaming Mouse movement is usually no more than 100mm(standard 104-key keyboard length is about 450mm). And the use of one-handed game keyboard, can let the player play with a wide mouse movement space, so that players enjoy a more rapid and flexible mouse operation.
For the one-handed game keyboard, comfortable ergonomic design, is to allow players to maintain long-term combat effectiveness of the basic guarantee. However, it is different from the ergonomic design of mouse in that players often move their fingers up and down and left and right when using the Gaming Keyboard.The ergonomic design that is too close to the palm will lead to the restriction of finger movement. Therefore, the ergonomic design of the one-handed game keyboard must be carried out in order to ensure that the player's finger operation is not affected.
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The new A19 60-Watt Dimmable LED Light Reference Design combines Cree® XLamp® LEDs with Marvell® 88EM8183 deep dimming TRIAC LED driver integrated circuits (ICs) to provide OEMs and ODMs with the highest levels of existing dimmers Compatibility technology products. This results in a system performance of 75 lumens per watt. The A19 lamp reference design features the industry's most advanced deep dimming performance, with a system performance of 75 lumens per watt, ensuring greater cost-effectiveness in OEM nuclear ODM. The design also helps to significantly reduce the cost of LED bulbs and increase customer satisfaction with the product.
Marvell believes that working with Cree will help drive solid-state lighting. Marvell's partnership provides a complete LED solution that enables OEMs and ODMs to bring to market products with the most advanced technology features and performance. Marvell's latest A19 lamp joint reference design uses the innovative 88EM8183 driver IC to address the cost, dimming performance and light quality issues associated with popularizing energy-efficient lighting technology among mass consumers. 
Due to the limited size of one-handed gaming keyboards, the number of surface keys usually does not exceed the number of keys in the main key area of a standard keyboard (61 keys). Although the current PC games are designed with the first left hand key area, some secondary keys are still designed in the right hand key area for the convenience of players' memory and game operation.
On May 14th, Marvell, a global integrated chip solution manufacturer, announced that it has cooperated with Cree Co., Ltd. to develop a joint reference design for new LED lights, further promoting continuous cooperation between companies and promoting the mass adoption of LED lighting.