They really need to come out with much brighter bulbs approaching 1200-1500 lumens at daylight color temperature. I fear, though, that the heat generated at that brightness in combination with the heat from the electronics inside would greatly shorten the lifespan of the bulb.
I solved that problem in a different way. The (latest, 800lumen bulbs/HomeKit compatible bridge) Hue Starter Kit replaced the ambient/reading lighting in my small living room (along with a Hue Lightstrip Plus attached in a loose spiral to the back of the TV - an LCD screen in a corner - behind a layer of tracing paper; gives a wonderful smooth even light on the wall).
The light that the Hues couldn't replace was an old 300 watt Halogen torchiere, that got used only when I wanted the living room REALLY BRIGHT, for cleaning, craft projects, and such. I solved that by getting a
StudioPRO S-600B Bi-Color LED Lighting Panel that I mounted on top of a bookcase, just below the ceiling, aimed roughly 45 degrees up.
It uses the smaller, lower power 5mm LEDs, rather than the newer Cree 1-watt to 5-watt LEDs, but it uses 600 of them (a 24 by 25 matrix, about 16 inches square) - 300 "warm white" (3200K) and 300 "daylight" (5600K) LEDs in alternating rows. There are two dials on the back so you can vary the brightness of each set, to achieve the color of light you prefer, or crank them both up for maximum output. With all of them running full blast, it's claimed to put out over 6,000 lumens, and I suspect that's not far off. And it does that for around 50 watts (checked with a Kill-a-Watt). It's designed for professional video and still photography lighting, so it puts out a nice, even, bright light.
I plugged this panel into the electrical outlet through an
iDevices Switch, which connects to your WiFi network (WPA2 and everything) and works with HomeKit, with no hub involved.
So, I can tell Siri, "turn on my torch" and a couple seconds later the whole room is lit up BRIGHT. I can use the Home app to incorporate it into HomeKit scenes, but the Hue app / ecosystem doesn't know about it.
Can't find the Home app on the App Store. Who makes it?
Home is a $15 app, and it's worth the money. It's pretty nearly the app that Apple should have released as "the" HomeKit front-end app (I'd be happy if Apple bought it and released it as such). It'll let you see how everything is actually set up. Aside from it and the Hue app, the other one I'd recommend is the free
iDevices Connected app. You don't need to have any of iDevices' hardware to use it, and it knows more about HomeKit setup (homes, rooms, service groups, etc.) than the Hue app does.
The problem with the Hue app is that it is very good at talking to the Hue hub directly (turns out it's a simple HTTP REST protocol using JSON-formatted text data), but isn't very good at speaking HomeKit (because that was bolted on after the fact); it only has the barest minimum to submit lamps and scenes. In my particular setup, something corrupts the scenes in HomeKit every once in a while (I suspect the Hue app itself), but I can fix this by using the Home app to delete the scenes from HomeKit, then go into "Siri" settings in the Hue app and click each of the scenes to re-export them from Hue to HomeKit.