I purchased a Nicrew Slim LED to go over my low tech tank so I could move my planted nicrew light onto my other tank to double up and increase intensity on the high tech tank. Now I am so impressed with this light for the cost I needed to post. For £26 delivered next day its a smart bit of kit. Seems more well built than the older Nicrew lights. Has a built in controller with timer for 8 10 and 12 hours and has some adjustability for level and colour. It also ramps up and down on the timer settings. It's not as programmable as the planted light but seems to pack the same punch at half the cost. I would recommend to anyone who wants a step up from standard light but needs something small to fit under a hood. Not sure its big enough for high energy tank on it's Own but a few of these over a tank could be much more cost effective than a high end light. I'll let you know how it goes long term. Good job I bought it as the light timer packed up the day I bought it and stuck on.