The V2+ Circle Clip is the best and most durable clip on the market today. The bulb actually attaches through the clip and fits perfectly on the socket. There’s no more leaving clips on the roofline during a removal or having clips fall off the shingles because the clip is flimsy, these are the commercial grade clips that the pros use. The V2+ Circle Clip is made specifically for the C9 socket and bulb. The product is sold by the 2,000 count case pack.