Smart lighting is a tantalizing idea, but many models require an up-front investment in starter packs that usually require an additional piece of hardware beyond the light bulbs themselves.

These devices—known as a gateway, hub or bridge—often price smart bulbs out of the grasp of many potential users.

TP-Link is joining a small list of smart light bulb companies offering products that are trying to change that.

TP-Link recently announced the LB100, LB110, and LB120 smart Wi-Fi LED bulbs.

These bulbs can, however, be controlled by Amazon s Alexa personal digital assistant via voice commands if you are using a device like the Amazon Echo smart speaker.

TP-Link s LB120 smart Wi-Fi light bulb.

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