The "exclude" option is only available for Z-Wave, assuming you're talking about something you're trying to do from Hubitat. Are you, by chance, trying to add this bulb as a Z-Wave device? The GE Link is Zigbee, so you should choose that option instead. If Hubitat can't discover the bulb, it's likely that it wasn't properly reset. Try that again (likely turning the bulb on and off so many times for so many seconds in a row), then try a Zigbee discovery in Hubitat.
On a related note, be warned if your Zigbee network contains both bulbs and non-bulb/lighting devices: you will likely experience problems with these other devices. Zigbee bulbs have generally proven themselves to be poor repeaters for "regular" Zigbee (ZHA 1.2, at least) devices, as documented in numerous threads here and in other forums:
- Issues with zigbee bulbs - #17 by qtrain2391
- Cree Connected bulb reliability to automate, or lack thereof - Devices & Integrations - SmartThings Community
- FAQ: Best smart light bulbs to use [2015] - #52 by JDRoberts - FAQ - SmartThings Community
- FAQ: Are Smart Bulbs Repeaters? (Updated 2019: the new answer is yes, but may be inconsistent) - FAQ - SmartThings Community
- GE Link Bulb - #6 by corerootedxb
- Recommended Zigbee bulbs - #23 by raidflex
- (I can keep going, but a search will find you many more posts
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